Rev.2.4_00
HIGH RIPPLE-REJECTION LOW DROPOUT
CMOS VOLTAGE REGULATOR
WITH RESET FUNCTION
S-1701 Series
Seiko Instruments Inc. 1
The S-1701 Series, developed based on CMOS technology, is a
voltage regulator with a reset function and integrates a high-
accuracy voltage detector with on-chip delay circuit and a positive
voltage regulator with a low dropout voltage and high output voltage
on one chip.
The S-1701 Series is available in many types according to the
selection of the voltage detector block of the voltage detector,
including a SENSE pin input product. A built-in low on-resistance
transistor provides a low dropout voltage and large output current.
Small ceramic capacitors are available and an external capacitor for
delay is needless. Small SOT-23-5 and SOT-89-5 packages realize
high-density mounting.
Features
Regulator block
• Output voltage: 1.5 to 5.0 V, selectable in 0.1 V steps.
• High-accuracy output voltage: ±1.0%
• High peak current capability: 400 mA output is possible (at VIN ≥ VOUT(S) + 2.0 V)*1
• Built-in ON/OFF circuit: Ensures long battery life.
During power-off: 0.1 µA typ., 1.0 µA max.
• Low ESR capacitor can be used: A ceramic capacitor of 1.0 µF or more can be used for the output
capacitor.
• High ripple rejection: 70 dB typ. (at 1.0 kHz)
• Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
• Operating voltage range: 2.0 to 6.5 V
Detector block
• Output voltage: 1.5 to 5.5 V, selectable in 0.1 V steps.
• High-accuracy output voltage: ±1.0%
• Output mode: Nch open-drain active low output
• No need of an external capacitor for delay
• Three delay time settings: No delay (60 µs), 50 ms, 100 ms
• Operating voltage range: 0.8 to 6.5 V
Whole regulator
• Low current consumption During operation: 85 µA typ.
• Small package: SOT-23-5, SOT-89-5
• Lead-free products
*1. Attention should be paid to the power dissipation of the package when the output current is large.
Applications
• Power supply and reset circuit for battery-powered devices
• Power supply for personal communication devices
• Power supply for home appliances
Packages
Drawing Code Package Name
Package Tape Reel
SOT-23-5 MP005-A MP005-A MP005-A
SOT-89-5 UP005-A UP005-A UP005-A
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
2
Block Diagrams
1. S-1701 Series A/ B/ C/ G/ H/ J types
ON/OFF pin : Provided
SENSE pin : VIN connection
ON/OFF
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
*1. Parasitic diode
Oscillating
counter timer
(Delay circuit)
Figure 1
2. S-1701 Series D/ E/ F/ K/ L/ M types
ON/OFF pin : Provided
SENSE pin : VOUT connection
*1. Parasitic diode
ON/OFF
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
Oscillating
counter timer
(Delay circuit)
Figure 2
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 3
3. S-1701 Series N/ P/ Q types
ON/OFF pin : VIN connection
SENSE pin : Provided
*1. Parasitic diode
SENSE
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
Oscillating
counter timer
(Delay circuit)
Figure 3
4. S-1701 Series R/ S/ T types
ON/OFF pin : VDOUT connection
SENSE pin : Provided
*1. Parasitic diode
SENSE
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
Oscillating
counter timer
(Delay circuit)
Figure 4
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
4
5. S-1701 Series U/ V/ W types
ON/OFF pin : VIN connection
SENSE pin : VOUT connection
*1. Parasitic diode
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
Oscillating
counter timer
(Delay circuit)
Figure 5
6. S-1701 Series X/ Y/ Z types
ON/OFF pin : VIN connection
SENSE pin : VIN connection
*1. Parasitic diode
*1
Overcurrent
protector circuit
ON/OFF
circuit
Reference
voltage circuit
Reference
voltage circuit
VIN
VOUT
VSS
VDOUT
*1
+
−
+
−
Oscillating
counter timer
(Delay circuit)
Figure 6
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 5
Product Name Structure
• The product types, output voltage, detection voltage, and package types for the S-1701 Series can be
selected at the user’s request. Refer to the “1. Product name” for the meanings of the characters in the
product name, “2. Function list according to product type” for product types, and “3. Product name
list” for the full product names.
1. Product name
S-1701 x xx xx - xxxx G
Package abbreviation and IC packing
specifications*1
M5T1: SOT-23-5, tape product
U5T1: SOT-89-5, tape product
Detection voltage*2
15 to 55
(e.g., when the output voltage is 1.5 V,
it is expressed as 15.)
Output voltage
15 to 50
(e.g., when the output voltage is 1.5 V,
it is expressed as 15.)
Product type*3
A to Z (I and O are not provided)
*1. Refer to the taping specifications at the end of this book.
*2. In the S-1701D to S-1701F, S-1701K to S-1701M, and S-1701U to S-1701W types (that detect
output voltage), a reset signal may be output due to the undershoot of the output voltage when the
input voltage or load current changes transiently. Therefore, set the detection voltage after
sufficient evaluation using actual devices.
*3. Refer to the “2. Function list according to product type”.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
6
2. Function list according to product type
Table 1
Regulator Block Detector Block
Product
Type ON/OFF Pin ON/OFF Logic SENSE Pin Release Delay
Time
A Provided Active high
VIN connection
(pin not provided) No delay (60 µs)
B Provided Active high
VIN connection
(pin not provided) 50 ms
C Provided Active high
VIN connection
(pin not provided) 100 ms
D Provided Active high
VOUT connection
(pin not provided) No delay (60 µs)
E Provided Active high
VOUT connection
(pin not provided) 50 ms
F Provided Active high
VOUT connection
(pin not provided) 100 ms
G Provided Active low
VIN connection
(pin not provided) No delay (60 µs)
H Provided Active low
VIN connection
(pin not provided) 50 ms
J Provided Active low
VIN connection
(pin not provided) 100 ms
K Provided Active low
VOUT connection
(pin not provided) No delay (60 µs)
L Provided Active low
VOUT connection
(pin not provided) 50 ms
M Provided Active low
VOUT connection
(pin not provided) 100 ms
N VIN connection
(pin not provided) None Provided No delay (60 µs)
P VIN connection
(pin not provided) None Provided 50 ms
Q VIN connection
(pin not provided) None Provided 100 ms
R VDOUT connection
(pin not provided) None Provided No delay (60 µs)
S VDOUT connection
(pin not provided) None Provided 50 ms
T VDOUT connection
(pin not provided) None Provided 100 ms
U VIN connection
(pin not provided) None VOUT connection
(pin not provided) No delay (60 µs)
V VIN connection
(pin not provided) None VOUT connection
(pin not provided) 50 ms
W VIN connection
(pin not provided) None VOUT connection
(pin not provided) 100 ms
X VIN connection
(pin not provided) None VIN connection
(pin not provided) No delay (60 µs)
Y VIN connection
(pin not provided) None VIN connection
(pin not provided) 50 ms
Z VIN connection
(pin not provided) None VIN connection
(pin not provided) 100 ms
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 7
3. Product name list
3. 1 S-1701 Series A type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : No delay (60 µs)
Table 2
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701A1815-M5T1G S-1701A1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701A2520-M5T1G S-1701A2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701A2521-M5T1G S-1701A2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701A2522-M5T1G S-1701A2522-U5T1G
2.7 V ± 1.0% 2.8 V ± 1.0% S-1701A2728-M5T1G −
2.8 V ± 1.0% 2.5 V ± 1.0% S-1701A2825-M5T1G −
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701A3024-M5T1G S-1701A3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701A3025-M5T1G S-1701A3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701A3026-M5T1G S-1701A3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701A3326-M5T1G S-1701A3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701A3327-M5T1G S-1701A3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701A3328-M5T1G S-1701A3328-U5T1G
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701A3330-M5T1G −
3.3 V ± 1.0% 3.1 V ± 1.0% S-1701A3331-M5T1G −
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701A3430-M5T1G S-1701A3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701A5040-M5T1G S-1701A5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701A5041-M5T1G S-1701A5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701A5042-M5T1G S-1701A5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701A5043-M5T1G S-1701A5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
8
3. 2 S-1701 Series B type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : 50 ms
Table 3
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701B1815-M5T1G S-1701B1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701B2520-M5T1G S-1701B2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701B2521-M5T1G S-1701B2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701B2522-M5T1G S-1701B2522-U5T1G
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701B3024-M5T1G S-1701B3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701B3025-M5T1G S-1701B3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701B3026-M5T1G S-1701B3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701B3326-M5T1G S-1701B3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701B3327-M5T1G S-1701B3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701B3328-M5T1G S-1701B3328-U5T1G
3.3 V ± 1.0% 4.2 V ± 1.0% − S-1701B3342-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701B3430-M5T1G S-1701B3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701B5040-M5T1G S-1701B5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701B5041-M5T1G S-1701B5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701B5042-M5T1G S-1701B5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701B5043-M5T1G S-1701B5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 3 S-1701 Series C type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VIN connection Release delay time : 100 ms
Table 4
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701C1815-M5T1G S-1701C1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701C2520-M5T1G S-1701C2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701C2521-M5T1G S-1701C2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701C2522-M5T1G S-1701C2522-U5T1G
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701C3024-M5T1G S-1701C3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701C3025-M5T1G S-1701C3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701C3026-M5T1G S-1701C3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701C3326-M5T1G S-1701C3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701C3327-M5T1G S-1701C3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701C3328-M5T1G S-1701C3328-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701C3430-M5T1G S-1701C3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701C5040-M5T1G S-1701C5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701C5041-M5T1G S-1701C5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701C5042-M5T1G S-1701C5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701C5043-M5T1G S-1701C5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 9
3. 4 S-1701 Series D type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : No delay (60 µs)
Table 5
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701D1815-M5T1G S-1701D1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701D2520-M5T1G S-1701D2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701D2521-M5T1G S-1701D2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701D2522-M5T1G S-1701D2522-U5T1G
2.5 V ± 1.0% 2.3 V ± 1.0% S-1701D2523-M5T1G −
2.5 V ± 1.0% 2.4 V ± 1.0% S-1701D2524-M5T1G −
2.5 V ± 1.0% 2.6 V ± 1.0% S-1701D2526-M5T1G −
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701D2722-M5T1G −
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701D3024-M5T1G S-1701D3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701D3025-M5T1G S-1701D3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701D3026-M5T1G S-1701D3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701D3326-M5T1G S-1701D3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701D3327-M5T1G S-1701D3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701D3328-M5T1G S-1701D3328-U5T1G
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701D3330-M5T1G −
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701D3430-M5T1G S-1701D3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701D5040-M5T1G S-1701D5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701D5041-M5T1G S-1701D5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701D5042-M5T1G S-1701D5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701D5043-M5T1G S-1701D5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
10
3. 5 S-1701 Series E type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : 50 ms
Table 6
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701E1815-M5T1G S-1701E1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701E2520-M5T1G S-1701E2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701E2521-M5T1G S-1701E2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701E2522-M5T1G S-1701E2522-U5T1G
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701E2722-M5T1G −
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701E3024-M5T1G S-1701E3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701E3025-M5T1G S-1701E3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701E3026-M5T1G S-1701E3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701E3326-M5T1G S-1701E3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701E3327-M5T1G S-1701E3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701E3328-M5T1G S-1701E3328-U5T1G
3.3 V ± 1.0% 3.0 V ± 1.0% S-1701E3330-M5T1G −
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701E3430-M5T1G S-1701E3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701E5040-M5T1G S-1701E5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701E5041-M5T1G S-1701E5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701E5042-M5T1G S-1701E5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701E5043-M5T1G S-1701E5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 6 S-1701 Series F type
ON/OFF pin : Provided ON/OFF logic : Active high
SENSE pin : VOUT connection Release delay time : 100 ms
Table 7
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701F1815-M5T1G S-1701F1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701F2520-M5T1G S-1701F2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701F2521-M5T1G S-1701F2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701F2522-M5T1G S-1701F2522-U5T1G
2.7 V ± 1.0% 2.2 V ± 1.0% S-1701F2722-M5T1G −
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701F3024-M5T1G S-1701F3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701F3025-M5T1G S-1701F3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701F3026-M5T1G S-1701F3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701F3326-M5T1G S-1701F3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701F3327-M5T1G S-1701F3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701F3328-M5T1G S-1701F3328-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701F3430-M5T1G S-1701F3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701F5040-M5T1G S-1701F5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701F5041-M5T1G S-1701F5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701F5042-M5T1G S-1701F5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701F5043-M5T1G S-1701F5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 11
3. 7 S-1701 Series G type
ON/OFF pin : Provided ON/OFF logic : Active low
SENSE pin : VIN connection Release delay time : No delay (60 µs)
Table 8
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
2.5 V ± 1.0% 2.4 V ± 1.0% S-1701G2524-M5T1G −
3.3 V ± 1.0% 3.1 V ± 1.0% S-1701G3331-M5T1G −
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 8 S-1701 Series H type
ON/OFF pin : Provided ON/OFF logic : Active low
SENSE pin : VIN connection Release delay time : 50 ms
Table 9
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
5.0 V ± 1.0% 4.5 V ± 1.0% − S-1701H5045-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 9 S-1701 Series N type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : No delay (60 µs)
Table 10
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701N1515-M5T1G S-1701N1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701N1815-M5T1G S-1701N1815-U5T1G
1.8 V ± 1.0% 2.7 V ± 1.0% S-1701N1827-M5T1G −
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701N2515-M5T1G S-1701N2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701N2715-M5T1G S-1701N2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701N3015-M5T1G S-1701N3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701N3315-M5T1G S-1701N3315-U5T1G
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701N5015-M5T1G S-1701N5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
12
3. 10 S-1701 Series P type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 50 ms
Table 11
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701P1515-M5T1G S-1701P1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701P1815-M5T1G S-1701P1815-U5T1G
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701P2515-M5T1G S-1701P2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701P2715-M5T1G S-1701P2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701P3015-M5T1G S-1701P3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701P3315-M5T1G S-1701P3315-U5T1G
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701P5015-M5T1G S-1701P5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 11 S-1701 Series Q type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 100 ms
Table 12
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701Q1515-M5T1G S-1701Q1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701Q1815-M5T1G S-1701Q1815-U5T1G
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701Q2515-M5T1G S-1701Q2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701Q2715-M5T1G S-1701Q2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701Q3015-M5T1G S-1701Q3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701Q3315-M5T1G S-1701Q3315-U5T1G
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701Q5015-M5T1G S-1701Q5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 12 S-1701 Series R type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : No delay (60 µs)
Table 13
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701R1515-M5T1G S-1701R1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701R1815-M5T1G S-1701R1815-U5T1G
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701R2515-M5T1G S-1701R2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701R2715-M5T1G S-1701R2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701R3015-M5T1G S-1701R3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701R3315-M5T1G S-1701R3315-U5T1G
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701R5015-M5T1G S-1701R5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 13
3. 13 S-1701 Series S type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 50 ms
Table 14
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701S1515-M5T1G S-1701S1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701S1815-M5T1G S-1701S1815-U5T1G
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701S2515-M5T1G S-1701S2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701S2715-M5T1G S-1701S2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701S3015-M5T1G S-1701S3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701S3315-M5T1G S-1701S3315-U5T1G
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701S5015-M5T1G S-1701S5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 14 S-1701 Series T type
ON/OFF pin : VDOUT connection ON/OFF logic : None
SENSE pin : Provided Release delay time : 100 ms
Table 15
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.5 V ± 1.0% 1.5 V ± 1.0% S-1701T1515-M5T1G S-1701T1515-U5T1G
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701T1815-M5T1G S-1701T1815-U5T1G
2.5 V ± 1.0% 1.5 V ± 1.0% S-1701T2515-M5T1G S-1701T2515-U5T1G
2.7 V ± 1.0% 1.5 V ± 1.0% S-1701T2715-M5T1G S-1701T2715-U5T1G
3.0 V ± 1.0% 1.5 V ± 1.0% S-1701T3015-M5T1G S-1701T3015-U5T1G
3.3 V ± 1.0% 1.5 V ± 1.0% S-1701T3315-M5T1G S-1701T3315-U5T1G
3.3 V ± 1.0% 2.5 V ± 1.0% S-1701T3325-M5T1G −
5.0 V ± 1.0% 1.5 V ± 1.0% S-1701T5015-M5T1G S-1701T5015-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
14
3. 15 S-1701 Series U type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : No delay (60 µs)
Table 16
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701U1815-M5T1G S-1701U1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701U2520-M5T1G S-1701U2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701U2521-M5T1G S-1701U2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701U2522-M5T1G S-1701U2522-U5T1G
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701U3024-M5T1G S-1701U3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701U3025-M5T1G S-1701U3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701U3026-M5T1G S-1701U3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701U3326-M5T1G S-1701U3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701U3327-M5T1G S-1701U3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701U3328-M5T1G S-1701U3328-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701U3430-M5T1G S-1701U3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701U5040-M5T1G S-1701U5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701U5041-M5T1G S-1701U5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701U5042-M5T1G S-1701U5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701U5043-M5T1G S-1701U5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 16 S-1701 Series V type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : 50 ms
Table 17
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701V1815-M5T1G S-1701V1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701V2520-M5T1G S-1701V2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701V2521-M5T1G S-1701V2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701V2522-M5T1G S-1701V2522-U5T1G
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701V3024-M5T1G S-1701V3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701V3025-M5T1G S-1701V3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701V3026-M5T1G S-1701V3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701V3326-M5T1G S-1701V3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701V3327-M5T1G S-1701V3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701V3328-M5T1G S-1701V3328-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701V3430-M5T1G S-1701V3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701V5040-M5T1G S-1701V5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701V5041-M5T1G S-1701V5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701V5042-M5T1G S-1701V5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701V5043-M5T1G S-1701V5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 15
3. 17 S-1701 Series W type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VOUT connection Release delay time : 100 ms
Table 18
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
1.8 V ± 1.0% 1.5 V ± 1.0% S-1701W1815-M5T1G S-1701W1815-U5T1G
2.5 V ± 1.0% 2.0 V ± 1.0% S-1701W2520-M5T1G S-1701W2520-U5T1G
2.5 V ± 1.0% 2.1 V ± 1.0% S-1701W2521-M5T1G S-1701W2521-U5T1G
2.5 V ± 1.0% 2.2 V ± 1.0% S-1701W2522-M5T1G S-1701W2522-U5T1G
3.0 V ± 1.0% 2.4 V ± 1.0% S-1701W3024-M5T1G S-1701W3024-U5T1G
3.0 V ± 1.0% 2.5 V ± 1.0% S-1701W3025-M5T1G S-1701W3025-U5T1G
3.0 V ± 1.0% 2.6 V ± 1.0% S-1701W3026-M5T1G S-1701W3026-U5T1G
3.3 V ± 1.0% 2.6 V ± 1.0% S-1701W3326-M5T1G S-1701W3326-U5T1G
3.3 V ± 1.0% 2.7 V ± 1.0% S-1701W3327-M5T1G S-1701W3327-U5T1G
3.3 V ± 1.0% 2.8 V ± 1.0% S-1701W3328-M5T1G S-1701W3328-U5T1G
3.4 V ± 1.0% 3.0 V ± 1.0% S-1701W3430-M5T1G S-1701W3430-U5T1G
5.0 V ± 1.0% 4.0 V ± 1.0% S-1701W5040-M5T1G S-1701W5040-U5T1G
5.0 V ± 1.0% 4.1 V ± 1.0% S-1701W5041-M5T1G S-1701W5041-U5T1G
5.0 V ± 1.0% 4.2 V ± 1.0% S-1701W5042-M5T1G S-1701W5042-U5T1G
5.0 V ± 1.0% 4.3 V ± 1.0% S-1701W5043-M5T1G S-1701W5043-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 18 S-1701 Series X type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : No delay (60 µs)
Table 19
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
2.2 V ± 1.0% 1.9 V ± 1.0% S-1701X2219-M5T1G −
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701X3228-M5T1G S-1701X3228-U5T1G
3.3 V ± 1.0% 3.0 V ± 1.0% − S-1701X3330-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
3. 19 S-1701 Series Y type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : 50 ms
Table 20
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701Y3228-M5T1G S-1701Y3228-U5T1G
3.3 V ± 1.0% 3.0 V ± 1.0% − S-1701Y3330-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
16
3. 20 S-1701 Series Z type
ON/OFF pin : VIN connection ON/OFF logic : None
SENSE pin : VIN connection Release delay time : 100 ms
Table 21
Output Voltage Detection Voltage SOT-23-5 SOT-89-5
3.2 V ± 1.0% 2.8 V ± 1.0% S-1701Z3228-M5T1G S-1701Z3228-U5T1G
Remark
Please contact the SII marketing department for products with an output voltage or detection voltage other than those specified above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 17
Pin Configurations
Table 22
Pin No. Symbol Description
1 VIN
Input voltage pin
2 VSS
GND pin
3 ON/OFF
Shutdown pin
(A, B, C, D, E, F, G, H, J, K, L, M types)
3 SENSE
Detector SENSE pin
(N, P, Q, R, S, T types)
3 NC*1 No connection
(U, V, W, X, Y, Z types)
5 4
1 3 2
SOT-23-5
Top view
4 VDOUT
Detector output voltage pin*2
5 VOUT
Regulator output voltage pin
Figure 7
*1. The NC pin is electrically open.
The NC pin can be connected to VIN and VSS.
*2. Due to Nch open drain products, please use the pull-up resistor.
Table 23
Pin No. Symbol Description
1 VIN
Input voltage pin
2 VSS
GND pin
3 VOUT
Regulator output voltage pin
4 VDOUT Detector output voltage pin*2
5 ON/OFF
Shutdown pin
(A, B, C, D, E, F, G, H, J, K, L, M types)
5 SENSE
Detector SENSE pin
(N, P, Q, R, S, T types)
5 4
1 3 2
SOT-89-5
Top view
5 NC*1 No connection
(U, V, W, X, Y, Z types)
Figure 8
*1. The NC pin is electrically open.
The NC pin can be connected to VIN and VSS
*2. Due to Nch open drain products, please use the pull-up resistor.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
18
Absolute Maximum Ratings
Table 24
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Absolute Maximum Rating Unit
VIN VSS − 0.3 to VSS + 7 V
VON/OFF VSS − 0.3 to VIN + 0.3 V
Input voltage
VSENSE VSS − 0.3 to VSS + 7 V
Regulator output voltage VOUT VSS − 0.3 to VIN + 0.3 V
Detector output voltage VSS − 0.3 to VSS + 7
R,S,T type VDOUT VSS − 0.3 to VIN + 0.3 V
300 (When not mounted on board) mW
SOT-23-5 600*1 mW
500 (When not mounted on board) mW
Power
dissipation SOT-89-5
PD
1000*1 mW
Operating ambient temperature Topr −40 to +85 °C
Storage temperature Tstg −40 to +125 °C
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
(1) When mounted on board (2) When not mounted on board
0
50 100
150
1200
800
400
0
Power dissipation P
D
(mW)
SOT-89-5
Ambient temperature Ta (°C)
1000
600
200
SOT-23-5
050 100 150
1200
800
400
0
Power dissipation P
D
(mW)
SOT-89-5
Ambient temperature Ta (°C)
1000
600
200
SOT-23-5
Figure 9 Power Dissipation of Package
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 19
Electrical Characteristics
1. S-1701 Series A/ B/ C/ G/ H/ J types
Table 25 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 3
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 1
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 2
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 1
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38
V 1
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29
V 1
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25
V 1
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21
V 1
Line regulation
∆
V
IN
•
V
OUT
∆
V
OUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 1
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV 1
Output voltage
temperature
coefficient
*4
∆
Ta
•
V
OUT
∆
V
OUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
100
±
350 ppm/
°
C 1
Current
consumption
during operation
I
SSR
V
IN
= V
OUT(S)
+
1.0 V, ON/OFF pin = ON,
no load
−
80 103
µ
A 3
Input voltage V
IN
−
2
−
6.5 V
−
ON/OFF pin
input voltage “H” V
SH
V
IN
= V
OUT(S)
+
1.0 V, R
L
= 1.0 k
Ω
1.5
−
−
V 4
ON/OFF pin
input voltage “L” V
SL
V
IN
= V
OUT(S)
+
1.0 V, R
L
= 1.0 k
Ω
−
−
0.3
V 4
ON/OFF pin
input current “H” I
SH
V
IN
= 6.5 V, V
ON/OFF
= 6.5 V
−
0.1
−
0.1
µ
A 4
ON/OFF pin
input current “L” I
SL
V
IN
= 6.5 V, V
ON/OFF
= 0 V
−
0.1
−
0.1
µ
A 4
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 5
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, ON/OFF pin = ON,
V
OUT
= 0 V
−
160
−
mA 2
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
20
Table 25 (2/2)
Detector block
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 6
Hysteresis width V
HYS
−
3 5 7 % 6
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 7
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 7
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 7
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 7
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 7
Detection voltage
temperature
coefficient
*6
∆
Ta
•
−V
DET
∆
−V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 6
Delay time t
D
No delay (t
D
= 60
µ
s)
−
60 100
µ
s 6
t
D
= 50 ms ms 6
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 6
Current
consumption
during operation
I
SSD
V
IN
=
V
OUT(S)
+
1.0 V, ON/OFF pin = OFF,
no load
−
5 7
µ
A 8
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 7
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output
current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified detection voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 21
2. S-1701 Series D/ E/ F/ K/ L/ M types
Table 26 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 3
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 1
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 2
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 1
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38
V 1
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29
V 1
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25
V 1
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21
V 1
Line regulation
∆
VIN
•
VOUT
∆
VOUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 1
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV 1
Output voltage
temperature
coefficient
*4
∆
Ta
•
VOUT
∆
VOUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85°C
*8
−
±
100
±
350 ppm/
°
C 1
Current
consumption
during operation
I
SSR
V
IN
= V
OUT(S)
+
1.0 V, ON/OFF pin = ON,
no load
−
80 103
µ
A 3
Input voltage V
IN
−
2
−
6.5 V
−
ON/OFF pin
input voltage “H” V
SH
V
IN
= V
OUT(S)
+
1.0 V, R
L
= 1.0 k
Ω
1.5
−
−
V 4
ON/OFF pin
input voltage “L” V
SL
V
IN
= V
OUT(S)
+
1.0 V, R
L
= 1.0 k
Ω
−
−
0.3
V 4
ON/OFF pin
input current “H” I
SH
V
IN
= 6.5 V, V
ON/OFF
= 6.5 V
−
0.1
−
0.1
µ
A 4
ON/OFF pin
input current “L” I
SL
V
IN
= 6.5 V, V
ON/OFF
= 0 V
−
0.1
−
0.1
µ
A 4
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 5
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, ON/OFF pin = ON,
V
OUT
= 0 V
−
160
−
mA 2
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
22
Table 26 (2/2)
Detector block
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 9
Hysteresis width V
HYS
−
3 5 7 % 9
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 7
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 7
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 7
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 7
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 7
Detection voltage
temperature
coefficient
*6
∆
Ta • −V
DET
∆
−V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 9
Delay time t
D
No delay (t
D
= 60
µ
s)
−
60 100
µ
s 9
t
D
= 50 ms ms 9
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 9
Current consumption
during operation I
SSD
V
IN
= V
OUT(S)
+
1.0 V, ON/OFF pin = OFF,
no load
−
5 7
µ
A 8
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 7
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output
current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified detection voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 23
3. S-1701 Series N/ P/ Q types
Table 27 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 12
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 10
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 11
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 10
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38 V 10
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29 V 10
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25 V 10
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21 V 10
Line regulation
∆
V
IN
• V
OUT
∆
V
OUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 10
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV
10
Output voltage
temperature
coefficient
*4
∆
Ta
•
V
OUT
∆
V
OUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85°C
*8
−
±
100
±
350 ppm/
°
C 10
Input voltage V
IN
−
2
−
6.5 V
−
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 13
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, V
OUT
= 0 V
−
160
−
mA 11
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
24
Table 27 (2/2)
Detector block
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 14
Hysteresis width V
HYS
−
3 5 7 % 14
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 15
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 15
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 15
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 15
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 15
Detection voltage
temperature
coefficient
*6
∆
Ta • −V
DET
∆
−V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 14
Delay time t
D
No delay (t
D
= 60
µ
s)
−
60 100
µ
s 14
t
D
= 50 ms ms 14
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 14
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 15
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output
current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified output voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 25
4. S-1701 Series R/ S/ T types
Table 28 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 12
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 10
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 11
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 10
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38 V 10
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29 V 10
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25 V 10
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21 V 10
Line regulation
∆
V
IN
•
V
OUT
∆
V
OUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 10
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV 10
Output voltage
temperature
coefficient
*4
∆
Ta
•
V
OUT
∆
V
OUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85 °C
*8
−
±
100
±
350 ppm/
°
C 10
Input voltage V
IN
−
2
−
6.5 V
−
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 13
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, V
OUT
= 0 V
−
160
−
mA 11
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
26
Table 28 (2/2)
Detector block
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 14
Hysteresis width V
HYS
−
3 5 7 % 14
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 15
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 15
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 15
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 15
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 15
Detection voltage
temperature
coefficient
*6
∆
Ta
•
−
V
DET
∆
−
V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 14
Delay time t
D
No delay (t
D
= 60
µ
s)
−
60 100 us 14
t
D
= 50 ms ms 14
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 14
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 15
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output
current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified detection voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by
design, not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 27
5. S-1701 Series U/ V/ W types
Table 29 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 12
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 10
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 11
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 10
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38 V 10
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29 V 10
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25 V 10
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21 V 10
Line regulation
∆
V
IN
•
V
OUT
∆
V
OUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 10
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV 10
Output voltage
temperature
coefficient
*4
∆
Ta
•
V
OUT
∆
V
OUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
100
±
350 ppm/
°
C 10
Input voltage V
IN
−
2
−
6.5 V
−
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 13
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, V
OUT
= 0 V
−
160
−
mA 11
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
28
Table 29 (2/2)
Detector block
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 16
Hysteresis width V
HYS
−
3 5 7 % 16
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 15
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 15
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 15
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 15
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 15
Detection voltage
temperature
coefficient
*6
∆
Ta
•
−
V
DET
∆
−
V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 16
No delay (t
D
= 60
µ
s)
−
60 100
µ
s 16
t
D
= 50 ms ms 16
Delay time t
D
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 16
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 15
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output
current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified detection voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 29
6. S-1701 Series X/ Y/ Z types
Table 30 (1/2)
(Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Current
consumption I
SS
V
IN
= V
OUT(S)
+
1.0 V, no load
−
85 110
µ
A 12
Regulator block
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Output voltage
*1
V
OUT(E)
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA V
OUT(S)
×
0.99 V
OUT(S)
V
OUT(S)
×
1.01 V 10
Output current
*2
I
OUT
V
IN
≥
V
OUT(S)
+
2.0 V
When V
OUT(S)
= 4.5 V or higher, V
IN
= 6.5 V 400
*7
−
−
mA 11
1.5 V
≤
V
OUT(S)
≤
1.6 V 0.50 0.54 0.58 V 10
1.7 V
≤
V
OUT(S)
≤
1.8 V
−
0.34 0.38
V 10
1.9 V
≤
V
OUT(S)
≤
2.3 V
−
0.19 0.29
V 10
2.4 V
≤
V
OUT(S)
≤
2.7 V
−
0.16 0.25
V 10
Dropout voltage
*3
V
drop
I
OUT
= 100 mA
2.8 V
≤
V
OUT(S)
≤
5.0 V
−
0.14 0.21
V 10
Line regulation
∆
V
IN
•
V
OUT
∆
V
OUT1
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V, I
OUT
= 30 mA
−
0.05 0.2 %/V 10
Load regulation
∆
V
OUT2
V
IN
= V
OUT(S)
+
1.0 V, 1.0 mA
≤
I
OUT
≤
100 mA
−
20 40 mV 10
Output voltage
temperature
coefficient
*4
∆
Ta • V
OUT
∆
V
OUT
V
IN
= V
OUT(S)
+
1.0 V, I
OUT
= 30 mA
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
100
±
350 ppm/
°
C 10
Input voltage V
IN
−
2
−
6.5 V
−
Ripple rejection |RR| V
IN
= V
OUT(S)
+
1.0 V, f = 1.0 kHz,
∆
V
rip
= 0.5 Vrms, I
OUT
= 30 mA
−
70
−
dB 13
Short-circuit
current I
short
V
IN
= V
OUT(S)
+
1.0 V, V
OUT
= 0 V
−
160
−
mA 11
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
30
Table 30 (2/2)
Detector block (Ta = 25 °C unless otherwise specified)
Parameter Symbol Conditions Min. Typ. Max. Unit
Test
Circuit
Detection voltage
*5
−
V
DET
−
−
V
DET(S)
×
0.99
−
V
DET(S)
−
V
DET(S)
×
1.01 V 14
Hysteresis width V
HYS
−
3 5 7 % 14
V
IN
= 1.4 V
(1.5 V
≤
−
V
DET(S)
≤
5.5 V) 1.0 3.0
−
mA 15
V
IN
= 2.0 V
(2.1 V
≤
−
V
DET(S)
≤
5.5 V) 2.0 4.5
−
mA 15
V
IN
= 3.0 V
(3.1 V
≤
−
V
DET(S)
≤
5.5 V) 3.0 5.5
−
mA 15
V
IN
= 4.0 V
(4.1 V
≤
−
V
DET(S)
≤
5.5 V) 4.0 6.0
−
mA 15
Output current I
DOUT
Nch, V
DOUT
= 0.5 V
V
IN
= 5.0 V
(5.1 V
≤
−
V
DET(S)
≤
5.5 V) 5.0 6.5
−
mA 15
Detection voltage
temperature
coefficient
*6
∆
Ta
•
−
V
DET
∆
−
V
DET
−
40
≤
Ta
≤
+
85
°
C
*8
−
±
140
±
550 ppm/
°
C 14
No delay (t
D
= 60
µ
s)
−
60 100
µ
s 14
t
D
= 50 ms ms 14
Delay time t
D
t
D
= 100 ms
t
D
×
0.65
t
D
t
D
×
1.35 ms 14
Input voltage V
IN
−
0.8
−
6.5 V
−
Current leakage of
output transistor I
LEAK
V
IN
= 6.5 V, V
DOUT
= 6.5 V
−
−
0.1
µ
A 15
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(
=
30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes lower than 95% of V
OUT(E)
after gradually increasing the output current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of
V
OUT3
after gradually decreasing the input voltage.
*4.
The change in temperature [mV/°C] of the regulator output voltage is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆3*2**1
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
−
V
DET
: Actual detection voltage,
−
V
DET(S)
: Specified detection voltage
*6.
The change in temperature [mV/°C] of the detector detection voltage is calculated using the following equation.
∆
Ta • −V
DET
∆
−V
DET
[mV/°C]
*1
= −V
DET(S)
(Typ.) [V]
*2
×
∆
−V
DET
[ppm/°C]
*3
÷ 1000
∆
Ta
*1.
The change in temperature of the detection voltage
*2.
Specified detection voltage
*3.
Detection voltage temperature coefficient
*7.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation of the package when the output current is large. This specification is guaranteed by design.
*8.
Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 31
Test Circuits
1.
ON/OFF
VDOUT
VOUT
VSS
VIN
V
+
A
+
Set to
power on
100 k
Ω
2.
ON/OFF
VDOUT
VOUT
VSS
V
+
A
+
Set to
power on
VIN
100 k
Ω
Figure 10
Figure 11
3.
ON/OFF
VDOUT
VOUT
VSS
A
+
Set to
power on
VIN
100 k
Ω
4.
ON/OFF
VDOUT
VOUT
VSS
V
+
A
+
VIN
100 k
Ω
R
L
Figure 12
Figure 13
5.
ON/OFF
VDOUT
VOUT
VSS
V
+
Set to
power on
VIN
100 k
Ω
R
L
6.
ON/OFF
VDOUT
VOUT
VSS
V
+
Set to
power off
VIN
100 k
Ω
Figure 14 Figure 15
7.
ON/OFF
VDOUT
VOUT
VSS
Set to
power off
A
+
VIN
8.
ON/OFF
VDOUT
VOUT
VSS
A
+
Set to
power off
VIN
100 k
Ω
Figure 16
Figure 17
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
32
9.
VIN
VOUT
VDOUT
VSS
V
+
Set to
power off
100 k
Ω
ON/OFF
10.
(SENSE)
VDOUT
VOUT
VSS
V
+
A
+
VIN
100 k
Ω
Figure 18
Figure 19
11.
(SENSE)
VDOUT
VOUT
VSS
V
+
A
+
VIN
100 k
Ω
12.
(SENSE)
VDOUT
VOUT
VSS
A
+
VIN
100 k
Ω
Figure 20
Figure 21
13.
(SENSE)
VDOUT
VOUT
VSS
V
+
VIN
100 k
Ω
R
L
14.
(SENSE)
VDOUT
VOUT
VSS
V
+
VIN
100 k
Ω
Figure 22
Figure 23
15.
(SENSE)
VDOUT
VOUT
VSS
A
+
VIN
16.
VIN
VOUT
VDOUT
VSS
V
+
100 k
Ω
Figure 24 Figure 25
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 33
Standard Circuit
1. S-1701 Series A/ B/ C/ D/ E/ F/ G/ H/ J/ K/ L/ M types
VSS
VDOUT
ON/OFF
VIN
CIN
*1
CL
*2
Input VD output
GND
Single GND
VOUT
VR output
*1. CIN is a capacitor for stabilizing the input.
*2. A ceramic capacitor of 1.0 µF or more can be used for CL.
Figure 26
2. S-1701 Series N/ P/ Q/ R/ S/ T/ U/ V/ W/ X/ Y/ Z types
VSS
VDOUT
(SENSE)
*
3
VIN
CIN
*1
CL
*2
Input VD output
GND
Single GND
VOUT
VR output
*1. CIN is a capacitor for stabilizing the input.
*2. A ceramic capacitor of 1.0 µF or more can be used for CL.
*3. U/ V/ W/ X/ Y/ Z types of S-1701 series are no connection.
Figure 27
Caution The above connection diagrams and constants will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constants.
Application Conditions
Input capacitor (CIN): 1.0 µF or more
Output capacitor (CL): 1.0 µF or more
ESR of output capacitor: 10 Ω or less
Caution A general series regulator may oscillate, depending on the external components selected.
Check that no oscillation occurs in an application that uses the above capacitor.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
34
Selection of Input and Output Capacitors (CIN, CL)
The S-1701 Series requires an output capacitor between the VOUT and VSS pins for phase compensation.
A ceramic capacitor with a capacitance of 1.0 µF or more provides a stable operation in all temperature
ranges. When using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, a capacitor
with a capacitance of 1.0 µF or more and an ESR of 10 Ω or less is required.
The output overshoot and undershoot values, which are transient response characteristics, vary depending
on the output capacitor value. The required capacitance value for the input capacitor differs depending on
the application.
The recommended application values are CIN = 1.0 µF or more and CL = 1.0 µF or more, however, perform
thorough evaluation using the actual device, including evaluation of temperature characteristics.
Explanation of Terms
Regulator block
1. Low dropout voltage regulator
The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in
low on-resistance transistor.
2. Low ESR
A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1701 Series enables use of a low
ESR capacitor, such as a ceramic capacitor, for the output-side capacitor (CL). A capacitor whose ESR is
10 Ω or less can be used.
3. Output voltage (VOUT)
The accuracy of the output voltage is ensured at ±1.0% under the specified conditions of fixed input
voltage*1, fixed output current, and fixed temperature.
*1. Differs depending on the product.
Caution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Please see the electrical characteristics and
attached characteristics data for details.
4. Line regulation
•∆
∆
OUTIN
1OUT
VV
V
Indicates the dependency of the output voltage on the input voltage. That is, the values show how much
the output voltage changes due to a change in the input voltage with the output current remaining
unchanged.
5. Load regulation (∆VOUT2)
Indicates the dependency of the output voltage on the output current. That is, the values show how
much the output voltage changes due to a change in the output current with the input voltage remaining
unchanged.
6. Dropout voltage (Vdrop)
Indicates the difference between the input voltage VIN1, which is the input voltage (VIN) at the point where
the output voltage has fallen to 98% of the output voltage value VOUT3 after VIN was gradually decreased
from VIN = VOUT(S) + 1.0 V, and the output voltage at that point (VOUT3 × 0.98).
Vdrop = VIN1 − (VOUT3 × 0.98)
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 35
7. Temperature coefficient of the output voltage
•∆
∆
OUT
OUT
VTa
V
The shaded area in Figure 28 is the range where VOUT varies in the operating temperature range when
the temperature coefficient of the output voltage is ±100 ppm/°C.
V
OUT
(
E
)
*1
Example of products with V
OUT
= 3.0 V
−40 25
+0.30 mV/°C
V
OUT
[V]
*1. V
OUT(E)
is the value of the output voltage measured at 25°C.
85 Ta [°C]
−0.30 mV/°C
Figure 28
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
[] [] []
1000Cppm/
VTa
V
VVCmV/
Ta
V
OUT
OUT
OUT(S)
OUT ÷°
•∆
∆
×=°
∆
∆
3*2*1*
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
36
Detector block
1. Detection voltage (−VDET), Release voltage (+VDET)
The detection voltage (−VDET) is the voltage at which the output switches to low. The detection
voltage varies slightly among products of the same specification. The variation of detection voltage
between the specified minimum (−VDET) Min. and the maximum (−VDET) Max. is called the detection
voltage range (refer to Figure 29).
e.g. For a product with −VDET = 3.0 V, the detection voltage is a value in the range of 2.97 V ≤
(−VDET) ≤ 3.03 V.
This means that some products have 2.97 V for −VDET and some have 3.03 V.
The release voltage (+VDET) is the voltage at which the output switches to high. The release voltage
varies slightly among products of the same specification. The variation of release voltages between
the specified minimum (+VDET) Min. and the maximum (+VDET) Max. is called the release voltage
range (refer to Figure 30).
e.g. For a product with −VDET = 3.0 V, the release voltage is a value in the range of 3.059 V ≤
(+VDET) ≤ 3.242 V.
This means that some products have 3.059 V for +VDET and some have 3.242 V.
Detection
voltage
Detection
voltage range
V
IN
(−V
DET
) Min.
(−V
DET
) Max.
V
DOUT
Delay time
Release voltage
Release
voltage range
V
IN
(+V
DET
) Min.
(+V
DET
) Max.
V
DOUT
Figure 29 Detection Voltage Figure 30 Release Voltage
Remark The above figures show the detection voltage and release voltage when the SENSE pin is
connected to VIN.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 37
2. Hysteresis width (VHYS)
The hysteresis width is the voltage difference between the detection voltage and the release voltage.
The existence of the hysteresis width prevents malfunction caused by noise on the input voltage.
3. Delay time (tD)
The delay time is a time internally measured from the instant at which the voltage input to the VDD pin
exceeds the release voltage (+VDET) to the point at which the output of the OUT pin inverts.
S-1701 Series A/ D/ G/ K/ N/ R/ U/ X types: No delay (60 µs typ.)
S-1701 Series B/ E/ H/ L/ P/ S/ V/ Y types: 50 ms typ.
S-1701 Series C/ F/ J/ M/ Q/ T/ W/ Z types: 100 ms typ.
t
D
V
IN
or
V
SENSE
V
DOUT
When t
D
= 60 µs
V
+V
DET
t
D
Remark The figure shows the case when the SENSE pin is connected to VIN.
When t
D
= 50 ms, 100 ms
Figure 31
4. Through-type current
The through-type current refers to the current that flows instantaneously when the voltage detector
detects and releases a voltage. The through-type current flows at a frequency of 20 kHz during the
release delay time since the internal logic circuit operates.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
38
5. Oscillation
In applications where a resistor is connected to the input side (Figure 32), the through-type current
which is generated when the output goes from low to high (release) causes a voltage drop equal to
[through-type current] × [input resistance] across the resistor. When the input voltage drops below
the detection voltage as a result, the output voltage goes from high to low. In this state, the through-
type current stops, its resultant voltage drop disappears, and the output goes from low to high. The
through-type current is then generated again, a voltage drop appears, and repeating the process
finally induces oscillation.
VDOUT
VSS
VIN
R
b
R
a
V
IN
S
-1701
detector
block
Figure 32 Example of Bad Implementation of Detection Voltage Changer
6. Other characteristics
6. 1 Temperature characteristics of detection voltage
The shaded area in Figure 33 is the range where VOUT varies within the operating temperature range
when the temperature coefficient of the output voltage is ±140 ppm/°C.
−40 25
+0.42 mV/°C
−V
DET
[V]
3.000
85 Ta [°C]
−0.42 mV/°C
Example of products with −V
DET
= 3.0 V
Figure 33 Detection Voltage Temperature Characteristics
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 39
6. 2. Temperature characteristics of release voltage
The temperature change Ta
VDET
∆
+∆ of the release voltage is calculated by the temperature
change Ta
VDET
∆
−∆ of the detection voltage as follows:
Ta
V
V
V
Ta
VDET
DET
DETDET
∆
−∆
×
−
+
=
∆
+∆
The temperature changes of the release voltage and the detection voltage consequently have the
same sign.
6. 3. Temperature characteristics of hysteresis voltage
The temperature change of the hysteresis voltage is expressed as
Ta
V
Ta
VDETDET
∆
−∆
−
∆
+∆ and is
calculated as follows:
Ta
V
V
V
Ta
V
Ta
VDET
DET
HYSDETDET
∆
−∆
×
−
=
∆
−∆
−
∆
+∆
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
40
Operation
Regulator block
1. Basic operation
Figure 34 shows the block diagram of the regulator block.
The error amplifier compares the reference voltage (Vref) with Vfb, which is the output voltage resistance
divided by feedback resistors Rs and Rf. It supplies the output transistor with the gate voltage necessary
to ensure a certain output voltage free of any fluctuations of input voltage and temperature.
Output voltage is selectable from the range of 1.5 to 5.0 V in the S-1701 Series.
Vfb
Vref
VIN
VOUT
Rf
Rs
Current
supply
Reference
voltage circuit
*1
*1. Parasitic diode
VSS
Error amplifier
−
+
Figure 34 Block Diagram (Regulator Block)
2. Output transistor
The S-1701 Series uses a low on-resistance P-channel MOS FET as the output transistor.
Be sure that VOUT does not exceed VIN + 0.3 V to prevent the voltage regulator from being damaged due to
inverse current flowing from the VOUT pin through a parasitic diode to the VIN pin.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 41
3. Shutdown pin (ON/OFF pin) (S-1701 Series A/ B/ C/ D/ E/ F/ G/ H/ J/ K/ L/ M types)
This pin starts and stops the regulator.
When the ON/OFF pin is set to the shutdown level, the operation of all internal circuits stop, and the built-
in P-channel MOS FET output transistor between the VIN pin and VOUT pin is turned off to substantially
reduce the current consumption. At this time, the current consumption equals that consumed by the
detector block, because the internal circuits of the detector are operating. The VOUT pin becomes the
VSS level due to the internally divided resistance of several hundred kΩ between the VOUT pin and VSS
pin.
The structure of the ON/OFF pin is as shown in Figure 35. Since the ON/OFF pin is neither pulled down
nor pulled up internally, do not use it in the floating state. In addition, note that the current consumption
increases if a voltage of 0.3 V to VIN − 0.3 V is applied to the ON/OFF pin. When the ON/OFF pin is not
used, connect it as follows according to the product type.
• S-1701 Series A/ B/ C/ D/ E/ F types: Connect to the VIN pin.
• S-1701 Series G/ H/ J/ K/ L/ M types: Connect to the VSS pin.
Table 31
Product Type ON/OFF Pin Internal Circuits VOUT Pin Voltage Current
Consumption
A/ B/ C/ D/ E/ F “H”: Power on Operating Set value ISS
A/ B/ C/ D/ E/ F “L”: Shutdown Stopped VSS level ISSD
G/ H/ J/ K/ L/ M “H”: Shutdown Stopped VSS level ISSD
G/ H/ J/ K/ L/ M “L”: Power on Operating Set value ISS
VSS
ON/OFF
VIN
Figure 35
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
42
Detector block
1. Basic operation
Figure 36 shows a block diagram of the detector block.
Ra
Rb
Rc
*1
*1. Parasitic diode
VSS
Current
supply
+
−
VIN VSENSE
Vref
N1
VDOU
T
Nch
Delay circuit
Figure 36 Block Diagram (Detector Block)
(1) When the SENSE voltage (VSENSE) is higher than the release voltage (+VDET), the Nch
transistor is OFF and VIN (high) is output. Since the Nch transistor N1 in Figure 36 is OFF,
(Rb + Rc) • VSENSE
the comparator input voltage is Ra + Rb + Rc .
(2) When VSENSE goes below +VDET, VIN is output, as long as VSENSE remains above the detection
voltage (−VDET). When the VSENSE falls below −VDET, the Nch transistor becomes ON and VSS is
output. At this time, the Nch transistor N1 in Figure 36
Rb • VSENSE
becomes ON, and the comparator input voltage is changed to Ra + Rb .
(3) When VIN falls below the minimum operating voltage, the output becomes undefined. In this
case the output becomes VIN because it is pulled up.
(4) VSS is output when VIN rises above the minimum operating voltage. The VSS level still appears
even when VSENSE surpasses −VDET, as long as it does not exceed the release voltage +VDET.
When VSENSE rises above +VDET, the Nch transistor becomes OFF and VIN is output. VIN at the
VDOUT pin is delayed for tD due to the delay circuit.
(5) In the S-1701 Series, the detection voltage can be set within the range of 1.5 to 5.5 V
(operating voltage range: 0.8 to 6.5 V).
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 43
A
BV
DD
t
D
V
SS
Minimum operating voltage
Output from VDOUT pin
V
IN
(V
SENSE
)
V
SS
(1) (2) (3) (5) (4)
Hysteresis width (V
HYS
)Release voltage (+V
DET
)
Detection voltage (−V
DET
)
Remark The above figure shows the case when the SENSE pin is connected to VIN.
Figure 37 Operation
2. Delay circuit
The delay circuit delays the output signal from the time when the SENSE voltage (VSENSE) exceeds
the release voltage (+VDET) when VSENSE is turned on (refer to point B in Figure 37). The output
signal is not delayed when VSENSE goes below the detection voltage (−VDET) (refer to point A in
Figure 37).
The delay time (tD) is a fixed value that is determined by a built-in clock generator which consists of
constant current an a capacitor, and counter.
3. Delay circuit output voltage detection type (S-1701 Series D/ E/ F/ K/ L/ M/ U/ V/ W types)
If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the
output voltage of the regulator. In the product types in which the output voltage of the regulator is
detected by the detector, if the output voltage is the detection voltage or lower due to the undershoot,
the detector operates and a reset signal may be output. To prevent this, set the value of the input-
and-output capacitor of a regulator so that the undershoot is the minimum value or set a voltage
range that allows the difference between the output voltage and detection voltage to be equal to or
greater than the undershoot.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
44
Explanation for Each Type
1. S-1701 Series A/ B/ C types
The S-1701 Series A/ B/ C types provide a regulator block standby mode realized by an ON/OFF function
that is active high. The internal circuit of the detector operates in the standby mode, so only the current that
the detector consumes flows.
The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied
to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows
selection of the release delay time from three settings (A: No delay (60 µs), B: 50 ms, C: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning VIN pin input impedance*1.
2. S-1701 Series D/ E/ F types
The S-1701 Series D/ E/ F types provide a regulator block standby mode realized by an ON/OFF function
that is active high. The internal circuit of the detector operates in the standby mode, so only the current that
the detector consumes flows.
The SENSE pin is connected to the VOUT pin, which is an output of the regulator, in the internal circuit of the
detector block, so the output voltage of the regulator (VOUT) is monitored and a reset signal is output from the
VDOUT pin*2. The built-in counter timer allows selection of the release delay time from three settings (D: No
delay (60 µs), E: 50 ms, F: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
3. S-1701 Series G/ H/ J types
The S-1701 Series G/ H/ J types provide a regulator block standby mode realized by an ON/OFF function
that is active low. The internal circuit of the detector operates in the standby mode, so only the current that
the detector consumes flows.
The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied
to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows
selection of the release delay time from three settings (G: No delay (60 µs), H: 50 ms, J: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
4. S-1701 Series K/ L/ M types
The S-1701 Series K/ L/ M types provide a regulator block standby mode realized by an ON/OFF function
that is active low. The internal circuit of the detector operates in the standby mode, so only the current that
the detector consumes flows.
The SENSE pin is connected to the VOUT pin, which is an output of the regulator in the internal circuit of the
detector block, so the output voltage of the regulator (VOUT) is monitored and a reset signal is output from the
VDOUT pin*2. The built-in counter timer allows selection of the release delay time from three settings (K: No
delay (60 µs), L: 50 ms, M: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 45
5. S-1701 Series N/ P/ Q types
The S-1701 Series N/ P/ Q types do not provide an ON/OFF function because the ON/OFF pin is connected
to the VIN pin in the circuit.
The detector block features the external SENSE pin, which allows monitoring of other power supplies. The
SENSE pin is configured only by a resistor, so instantaneous current such as through-type current does not
flow through this pin. This allows precise monitoring of the input power supply by connecting the SENSE pin
to the input power supply even when a resistor (RIN) is connected between the input power supply and the
VIN pin. The built-in counter timer allows selection of the release delay time from three settings (N: No delay
(60 µs), P: 50 ms, Q: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
6. S-1701 Series R/ S/ T types
In the S-1701 Series R/ S/ T types, the VDOUT pin, which is the output pin of the detector, is connected to
the ON/OFF pin of the regulator in the circuit. This allows setting of the regulator to the standby mode at the
same time as the VDOUT pin outputs a RESET signal.
The detector block features an external SENSE pin, which allows monitoring of other power supplies. The
SENSE pin is configured only by a resistor, so instantaneous current such as through-type current does not
flow through this pin. This allows precise monitoring of the input power supply by connecting the SENSE pin
to the input power supply even when a resistor (RIN) is connected between the input power supply and the
VIN pin. The built-in counter timer allows selection of the release delay time from three settings (R: No delay
(60 µs), S: 50 ms, T: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
7. S-1701 Series U/ V/ W types
The S-1701 Series U/ V/ W types do not provide an ON/OFF function because the ON/OFF pin is connected
to the VIN pin in the circuit.
The SENSE pin is connected to the VOUT pin, which is an output pin of the regulator, in the internal circuit of
the detector block, so the output voltage of the regulator (VOUT) is monitored and a reset signal is output from
the VDOUT pin*2. The built-in counter timer allows selection of the release delay time from three settings (U:
No delay (60 µs), V: 50 ms, W: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
8. S-1701 Series X/ Y/ Z types
The S-1701 Series X/ Y/ Z types do not provide an ON/OFF function because the ON/OFF pin is connected
to the VIN pin in the circuit.
The SENSE pin is connected to the VIN pin in the internal circuit of the detector block, so the voltage applied
to the VIN pin is monitored and a reset signal is output from the VDOUT pin. The built-in counter timer allows
selection of the release delay time from three settings (X: No delay (60 µs), Y: 50 ms, Z: 100 ms).
The power supply is shared by the regulator block and detector block and supplied from the VIN pin, so care
must be taken concerning the VIN pin input impedance*1.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
46
*1. In S-1701 series, when connecting the resistance RIN between an input power supply pin and a VIN pin, and
defining the current which flows into RIN as IIN, VIN pin voltage falls by ∆VIN = IIN×RIN at the time of overload,
and changes by ∆VIN = IIN×RIN at the time of load change. Thereby, keep in mind that phenomena, such as
output voltage falls and an output oscillation, occur.
*2. If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output
voltage of the regulator. In the product types in which the output voltage of the regulator is detected by the
detector, if the output voltage is the detection voltage or lower due to the undershoot, the detector operates
and a reset signal may be output. To prevent this, set the value of the input-and-output capacitor of a
regulator so that the undershoot is the minimum value or set a voltage range that allows the difference
between the output voltage and detection voltage to be equal to or greater than the undershoot.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 47
Precautions
• Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low.
When mounting an output capacitor between the VOUT and VSS pins (CL) and a capacitor for stabilizing
the input between the VIN and VSS pins (CIN), the distance from the capacitors to these pins should be
as short as possible.
• Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or
less).
• Generally, a series regulator may cause oscillation depending on the selection of external parts. The
following conditions are recommended for this IC. However, be sure to perform sufficient evaluation
under the actual usage conditions for selection, including evaluation of temperature characteristics.
Input capacitor (CIN): 1.0 µF or more
Output capacitor (CL): 1.0 µF or more
Equivalent series resistance (ESR): 10 Ω or less
• The voltage regulator may oscillate when the impedance of the power supply is high and the input
capacitor is small or an input capacitor is not connected.
• The application conditions for the input voltage, output voltage, and load current should not exceed the
package power dissipation.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
• In determining the output current, attention should be paid to the output current value specified in Tables
25 to 30 in the electrical characteristics and footnote *7 of the table.
• SII claims no responsibility for any disputes arising out of or in connection with any infringement by
products including this IC of patents owned by a third party.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
48
Application Circuit
If the desired detection voltage range is other than those provided by the S-1701 Series, the detection voltage
can be changed by using a divided resistor or diode in the SENSE pin products (N/ P/ Q/ R/ S/ T types) as
shown in Figures 38 and 39.
In the case shown in Figure 38, the hysteresis width also changes at the same time.
1. Changing detection voltage using divided resistors
R
a
*1
VDOUT
SENSE
VSS
VDD
S-1701 Series
N to T types
R
b
(R
a
≤ 75 kΩ)
VDD
*1. Set Ra to 75 kΩ or lower to prevent oscillation.
Figure 38
Caution If Ra and Rb are larger, the hysteresis may be greater than the result of the above
formula due to the through current of the IC.
2. Changing detection voltage using diode
V
f1
VDOUT
SENSE
VSS
VDD
S-1701 Series
N to T types
V
f2
VDD
Detection voltage = Vf1 + Vf2 + (−VDET)
Figure 39
Caution The above connection diagrams (Figures 38 and 39) and constants will not
guarantee successful operation. Perform thorough evaluation using the actual
application to set the constants.
Ra + Rb
Detection voltage = Rb • −VDET
Ra + Rb
Hysteresis width = Rb • VHYS
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 49
Characteristics (Typical Data)
1. Regulator block
(1) Output voltage vs. Output current (when load current increases)
S-1701x15xx (VOUT = 1.5 V, Ta = 25 °C) S-1701x30xx (VOUT = 3.0 V, Ta = 25 °C)
VOUT [V]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
200
400 600
800
2.0 V
V
IN
= 1.8 V
2.5 V
6.5 V
3.5 V
VOUT [V]
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
400
600
800
2000
3.5 V
V
IN
= 3.3 V
4.0 V
6.5 V
5.0 V
IOUT [mA]
IOUT [mA]
S-1701x50xx (VOUT = 5.0 V, Ta = 25 °C)
VOUT [V]
6
5
4
3
2
1
0
400 600 800200 0
5.5 V
V
IN
= 5.3 V
6.0 V
6.5 V
Remark In determining the output current,
attention should be paid to the following.
1) The minimum output current value
and footnote *7 in Table 25 to 30 in
the “Electrical Characteristics”.
2) The package power dissipation
IOUT [mA]
(2) Output voltage vs. Input voltage
S-1701x15xx (VOUT = 1.5 V, Ta = 25 °C) S-1701x30xx (VOUT = 3.0 V, Ta = 25 °C)
VOUT [V]
1.60
1.55
1.50
1.45
1.40
3.53.0
2.5
2.0
1.5
1.0
I
OUT
= 1 mA
30 mA
100 mA
VOUT [V]
3.10
3.05
3.00
2.95
2.90
5.04.5
4.0
3.53.02.5
I
OUT
= 1 mA
30 mA
100 mA
VIN [V]
VIN [V]
S-1701x50xx (VOUT = 5.0 V, Ta = 25 °C)
VOUT [V]
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
7.06.5
6.0
5.5
5.0
4.5
I
OUT
= 1 mA
30 mA
100 mA
VIN [V]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
50
(3) Dropout voltage vs. Output current
S-1701x15xx (VOUT = 1.5 V) S-1701x30xx (VOUT = 3.0 V)
Vdrop [V]
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
200 300
450
100
150
250
350
400
–40 °C
25 °C
Ta = 8 5 ° C
Vdrop [V]
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
200
300
450
100 150 250
350
400
−40 °C
25 °C
Ta = 85 °C
IOUT [mA]
IOUT [mA]
S-1701x50xx (VOUT = 5.0 V)
Vdrop [V]
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
200 300
450
100
150
250
350
400
−40 °C
25 °C
Ta =85 °C
IOUT [mA]
(4) Output voltage vs. Ambient temperature
S-1701x15xx (VOUT = 1.5 V, IOUT = 30 mA) S-1701x30xx (VOUT = 3.0 V, IOUT = 30 mA)
VOUT [V]
1.7
1.6
1.5
1.4
1.3
25
−25 75 85
−40 0 50
VOUT [V]
3.2
3.1
3.0
2.9
2.8
25
−25 75 85
−40 0 50
Ta [°C]
Ta [°C]
S-1701x50xx (VOUT = 5.0 V, IOUT = 30 mA)
VOUT [V]
5.2
5.1
5.0
4.9
4.8
25
−25
75
85
−40
0
50
Ta [°C]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 51
(5) Current consumption vs. Input voltage
S-1701x15xx (VOUT = 1.5 V) S-1701x30xx (VOUT = 3.0 V)
ISS [µA]
90
80
70
60
50
40
30
20
10
0
6
4
2
0 1 3 5 7
–40 °C
25 °C
Ta = 85 °C
ISS [µA]
90
80
70
60
50
40
30
20
10
0
6
4
2
0 1 3 5 7
−40 °C
25 °C
Ta = 85 °C
VIN [V] VIN [V]
S-1701x50xx (VOUT = 5.0 V)
ISS [µA]
90
80
70
60
50
40
30
20
10
0
6
4
2
0 1 3 5 7
−40 °C
25 °C
Ta = 85 °C
VIN [V]
(6) Ripple rejection ratio
S-1701x15xx (VOUT = 1.5 V, Ta = 25 °C) S-1701x30xx (VOUT = 3.0 V, Ta = 25 °C)
VIN = 2.5 V, COUT = 1.0 µF, IOUT = 30 mA VIN = 4.0 V, COUT = 1.0 µF, IOUT = 30 mA
Ripple Rejection [dB]
1M
100
80
60
40
20
0 100
1k
10k
100k
10
Ripple Rejection [dB]
1M
100
80
60
40
20
0
100 1k
10k
100k
10
Frequency [Hz]
Frequency [Hz]
S-1701x50xx (VOUT = 5.0 V, Ta = 25 °C)
VIN = 6.0 V, COUT = 1.0 µF, IOUT = 30 mA
Ripple Rejection [dB]
1M
100
80
60
40
20
0
100
1k
10k
100k
10
Frequency [Hz]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
52
2. Detector block
(1) Detection voltage vs. Ambient temperature
S-1701xxx15 (−VDET = 1.5 V) S-1701xxx55 (−VDET = 5.5 V)
VDET [V]
1.70
1.65
1.60
1.55
1.50
1.45
1.40
25
–25
75 85
–40
0
50
–V
DET
+V
DET
VDET [V]
6.2
6.0
5.8
5.6
5.4
5.2
5.0
25
–25 75 85
–40 0
50
–VDET
+VDET
Ta [°C]
Ta [°C]
(2) Hysteresis width vs. Ambient temperature
S-1701xxx15 (−VDET = 1.5 V) S-1701xxx55 (−VDET = 5.5 V)
VHYS [%]
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
25
−25
75
85
−40
0
50
VHYS [%]
25
−25 75
85
−40 0
50
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
Ta [°C]
Ta [°C]
(3) Detector block current consumption vs. Input voltage
S-1701xxx15 (−VDET = 1.5 V) S-1701xxx55 (−VDET = 5.5 V)
ISSD [µA]
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
6
4
2
0
1
3
5
7
−40 °C
25 °C
Ta = 85 °C
ISSD [µA]
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
6
4
2
0
1
3
5
7
−40 °C
25 °C
Ta = 85 °C
VIN [V]
VIN [V]
(4) Nch transistor output current vs. VDS characteristics
S-1701xxx55 (−VDET = 5.5 V, Ta = 25 °C)
IDOUT [mA]
25
20
15
10
5
0
6
4
2
0
1
3
5
V
IN
= 1.4 V
2.0 V
3.0 V
4.0 V
5.0 V
VDS [V]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 53
(5) Release delay time vs. Ambient temperature
S-1701xxx15 (VIN = 1.5 V, −VDET = 1.5 V, tD = 50 ms) S-1701xxx55 (VIN = 5.5 V, −VDET = 5.5 V, tD = 100 ms)
tD [ms]
100
90
80
70
60
50
40
30
20
10
0
25
−25
75
85
−40
0
50
tD [ms]
200
180
160
140
120
100
80
60
40
20
0
25
−25 75
85−40 0
50
Ta [°C]
Ta [°C]
S-1701xxx45 (VIN = 4.5 V, −VDET = 4.5 V, tD = 60 µs)
tD [µs]
100
90
80
70
60
50
40
30
20
10
0
25
−25
75
85
−40
0
50
Ta [°C]
(6) Minimum operating voltage vs. Input voltage
S-1701xxx15 (5 V pull up: 100 kΩ, −VDET = 1.5 V) S-1701xxx15 (VIN pull up: 100 kΩ, −VDET = 1.5 V)
VDOUT [V]
6
5
4
3
2
1
0
0.60.2
1.0
1.2
0
0.4
0.8
1.4
−40 °C
25 °C
Ta = 85 °C
VDOUT [V]
0.6
0.5
0.4
0.3
0.2
0.1
0
0.6
0.2 1.0
1.2
0
0.4 0.8
1.4
−40 °C
25 °C
Ta = 85 °C
VIN [V] VIN [V]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
54
Reference Data
(1) Input transient response characteristics
S-1701x15xx (V
IN
= 2.5 V
↔
3.5 V, V
OUT
=1.5 V, Ta = 25 °C) S-1701x30xx (V
IN
= 4.0 V
↔
5.0 V, V
OUT
= 3.0 V, Ta = 25 °C)
IOUT = 100 mA, tr = tf = 5.0 µs, COUT = 1.0 µF, CIN = 1.0 µF
I
OUT
= 100 mA, t
r
= t
f
= 5.0
µ
s, C
OUT
= 1.0
µ
F, C
IN
= 1.0
µ
F
VOUT [V]
–40 0 20 100
1.62
1.60
1.58
1.56
1.54
1.52
1.50
1.48
1.46
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–20 40 80
60 140 120 160 180
V
IN
V
OUT
VIN [V]
VOUT [V]
–40 020 100
3.08
3.06
3.04
3.02
3.00
2.98
2.96
6.0
5.0
4.0
3.0
2.0
1.0
0
–20 40 60 140 120 160 180
V
IN
V
OUT
80
VIN [V]
t [µs]
t [µs]
S-1701x50xx (V
IN
= 6.0 V
↔
6.5 V, V
OUT
= 5.0 V, Ta = 25 °C)
IOUT = 100 mA, tr = tf = 5.0 µs, COUT = 1.0 µF, CIN = 1.0 µF
VOUT [V]
–40 0 20 100
5.12
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
–20 40 80
60 140 120 160 180
V
IN
V
OUT
VIN [V]
t [µs]
(2) Load transient response characteristics
S-1701x15xx (VOUT =1.5 V, Ta = 25 °C) S-1701x30xx (VOUT = 3.0 V, Ta = 25 °C)
V
IN
=
2.5 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
50
↔
100 mA
V
IN
=
4.0 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
50
↔
100 mA
VOUT [V]
1.70
1.65
1.60
1.55
1.50
1.45
1.40
150
100
50
0
−50
−10
0
0
20
100
−20
40
80
60
140
120
160
I
OUT
V
OUT
IOUT [mA]
VOUT [V]
3.20
3.15
3.10
3.05
3.00
2.95
2.90
150
100
50
0
−50
−10
0
I
OUT
V
OUT
020 100
−20 40 80
60 140
120
160
IOUT [mA]
t [µs] t [µs]
S-1701x50xx (VOUT = 5.0 V, Ta = 25 °C)
V
IN
=
6.0 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
50
↔
100 mA
VOUT [V]
5.20
5.15
5.10
5.05
5.00
4.95
4.90
150
100
50
0
−50
−10
0
I
OUT
V
OUT
0
20
100
−20
40
80
60
140
120
160
IOUT [mA]
t [µs]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 55
(3) ON/OFF pin transient response characteristics
S-1701x15xx (VOUT = 1.5 V, Ta = 25 °C) S-1701x30xx (VOUT = 3.0 V, Ta = 25 °C)
V
IN
=
2.5 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
100 mA
V
IN
=
4.0 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
100 mA
VOUT [V]
3
2
1
0
−1
−2
−3
5
4
3
2
1
0
−1
0
10
20
30
40
50
60
70
−10
80
90
V
ON/OFF
V
OUT
VON/OFF [V]
VOUT [V]
6
4
2
0
−2
−4
−6
7
6
5
4
3
2
1
0
−1
010 20 30
40
50
60
70
−10 80
90
V
ON/OFF
V
OUT
VON/OFF [V]
t [µs]
t [µs]
S-1701x50xx (VOUT = 5.0 V, Ta = 25 °C)
V
IN
=
6.0 V, t
r
=
t
f
=
5.0
µ
s, C
OUT
=
1.0
µ
F, C
IN
=
1.0
µ
F,
IOUT =
100 mA
VOUT [V]
6
3
0
−3
−6
9
7
5
3
1
−1
0
10
20
30
40
50
60
70
−10
80
90
V
ON/OFF
V
OUT
VON/OFF [V]
t [µs]
(4) Dynamic response characteristics vs. COUT
S-1701xxx15 (V
IN
pull up: 100 k
Ω
,
−
V
DET
=
1.5 V, Ta
=
25 °C)
S-1701xxx55 (V
IN
pull up: 100 k
Ω
,
−
V
DET
=
5.5 V, Ta
=
25 °C)
Response time [ms]
1000
100
10
1
0.1
0.01
0.001
0.0001 0.001 0.01 0.1
0.00001
t
PHL
t
PLH
Response time [ms]
1000
100
10
1
0.1
0.01
0.001
t
PHL
t
PLH
0.0001 0.001 0.01 0.1
0.00001
CDOUT [µF] CDOUT [µF]
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
56
(a) Measurement conditions of dynamic response vs. COUT
1 µs 1 µs
V
IH
t
PHL
V
IN
×90%
t
PLH
V
IH
= 6.5 V, V
IL
= 1.3 V
V
IN
×10%
V
IL
V
IN
Input voltage
Output voltage
Figure 40
(b) Measurement circuit of the dynamic response for S-1701 Series A/ B/ C/ G/ H/ J/ X/ Y/ Z types
VSS
VOUT
(ON/OFF)
VIN
V
Set to
power off.
+
VDOUT
100 kΩ
V
+
Figure 41
(c) Measurement circuit of the dynamic response for S-1701 Series D/ E/ F/ K/ L/ M/ U/ V/ W types
VSS
VOUT
(ON/OFF)
VIN
V
+
VDOUT
100 kΩ
Set to
power off.
V
+
Figure 42
(d) Measurement circuit of the dynamic response for S-1701 Series N/ P/ Q/ R/ S/ T types
VSS
VOUT
SENSE
VIN
V
+
VDOUT
100 kΩ
V
+
Figure 43
Caution The above connection diagrams will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constants.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 57
Marking Specifications
(1) SOT-23-5
(1) to (3): Product code (Refer to Product name vs. Product code)
(4): Lot number
5 4
1 3
2
(1) (2) (3) (4)
SOT-23-5
Top view
Product name vs. Product code
(a) S-1701 Series A type (b) S-1701 Series B type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701A1815-M5T1G P 6 A S-1701B1815-M5T1G P 6 R
S-1701A2520-M5T1G P 6 B S-1701B2520-M5T1G P 6 S
S-1701A2521-M5T1G P 6 C S-1701B2521-M5T1G P 6 T
S-1701A2522-M5T1G P 6 D S-1701B2522-M5T1G P 6 U
S-1701A2728-M5T1G P 6 Q S-1701B3024-M5T1G P 6 V
S-1701A2825-M5T1G T B A S-1701B3025-M5T1G P 6 W
S-1701A3024-M5T1G P 6 E S-1701B3026-M5T1G P 6 X
S-1701A3025-M5T1G P 6 F S-1701B3326-M5T1G P 6 Y
S-1701A3026-M5T1G P 6 G S-1701B3327-M5T1G P 6 Z
S-1701A3326-M5T1G P 6 H S-1701B3328-M5T1G P 6 3
S-1701A3327-M5T1G P 6 I S-1701B3430-M5T1G P 8 Y
S-1701A3328-M5T1G P 6 J S-1701B5040-M5T1G P 6 4
S-1701A3330-M5T1G P 6 P S-1701B5041-M5T1G P 6 5
S-1701A3331-M5T1G T B C S-1701B5042-M5T1G P 6 6
S-1701A3430-M5T1G P 6 K S-1701B5043-M5T1G P 6 7
S-1701A5040-M5T1G P 6 L
S-1701A5041-M5T1G P 6 M
S-1701A5042-M5T1G P 6 N
S-1701A5043-M5T1G P 6 O
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
58
(c) S-1701 Series C type (d) S-1701 Series D type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701C1815-M5T1G P 9 A S-1701D1815-M5T1G P V A
S-1701C2520-M5T1G P 9 B S-1701D2520-M5T1G P V B
S-1701C2521-M5T1G P 9 C S-1701D2521-M5T1G P V C
S-1701C2522-M5T1G P 9 D S-1701D2522-M5T1G P V D
S-1701C3024-M5T1G P 9 E S-1701D2523-M5T1G P V P
S-1701C3025-M5T1G P 9 F S-1701D2524-M5T1G P V Q
S-1701C3026-M5T1G P 9 G S-1701D2526-M5T1G P V R
S-1701C3326-M5T1G P 9 H S-1701D2722-M5T1G P V S
S-1701C3327-M5T1G P 9 I S-1701D3024-M5T1G P V E
S-1701C3328-M5T1G P 9 J S-1701D3025-M5T1G P V F
S-1701C3430-M5T1G P 9 K S-1701D3026-M5T1G P V G
S-1701C5040-M5T1G P 9 L S-1701D3326-M5T1G P V H
S-1701C5041-M5T1G P 9 M S-1701D3327-M5T1G P V I
S-1701C5042-M5T1G P 9 N S-1701D3328-M5T1G P V J
S-1701C5043-M5T1G P 9 O S-1701D3330-M5T1G T C A
S-1701D3430-M5T1G P V O
S-1701D5040-M5T1G P V K
S-1701D5041-M5T1G P V L
S-1701D5042-M5T1G P V M
S-1701D5043-M5T1G P V N
Remark Please contact the SII marketing department for products with specifications other than the above.
(e) S-1701 Series E type (f) S-1701 Series F type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701E1815-M5T1G P V T S-1701F1815-M5T1G P W F
S-1701E2520-M5T1G P V U S-1701F2520-M5T1G P W G
S-1701E2521-M5T1G P V V S-1701F2521-M5T1G P W H
S-1701E2522-M5T1G P V W S-1701F2522-M5T1G P W I
S-1701E2722-M5T1G P W C S-1701F2722-M5T1G P W U
S-1701E3024-M5T1G P V X S-1701F3024-M5T1G P W J
S-1701E3025-M5T1G P V Y S-1701F3025-M5T1G P W K
S-1701E3026-M5T1G P V Z S-1701F3026-M5T1G P W L
S-1701E3326-M5T1G P V 3 S-1701F3326-M5T1G P W M
S-1701E3327-M5T1G P V 4 S-1701F3327-M5T1G P W N
S-1701E3328-M5T1G P V 5 S-1701F3328-M5T1G P W O
S-1701E3330-M5T1G P W B S-1701F3430-M5T1G P W T
S-1701E3430-M5T1G P W A S-1701F5040-M5T1G P W P
S-1701E5040-M5T1G P V 6 S-1701F5041-M5T1G P W Q
S-1701E5041-M5T1G P V 7 S-1701F5042-M5T1G P W R
S-1701E5042-M5T1G P V 8 S-1701F5043-M5T1G P W S
S-1701E5043-M5T1G P V 9
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 59
(g) S-1701 Series G type (h) S-1701 Series N type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701G2524-M5T1G T A N S-1701N1515-M5T1G P W Y
S-1701G3331-M5T1G T A O S-1701N1815-M5T1G P W Z
S-1701N1827-M5T1G P W 9
S-1701N2515-M5T1G P W 3
S-1701N2715-M5T1G P W 4
S-1701N3015-M5T1G P W 5
S-1701N3315-M5T1G P W 6
S-1701N5015-M5T1G P W 7
Remark Please contact the SII marketing department for products with specifications other than the above.
(i) S-1701 Series P type (j) S-1701 Series Q type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701P1515-M5T1G P X I S-1701Q1515-M5T1G P X Z
S-1701P1815-M5T1G P X J S-1701Q1815-M5T1G P X 3
S-1701P2515-M5T1G P X K S-1701Q2515-M5T1G P X 4
S-1701P2715-M5T1G P X L S-1701Q2715-M5T1G P X 5
S-1701P3015-M5T1G P X M S-1701Q3015-M5T1G P X 6
S-1701P3315-M5T1G P X N S-1701Q3315-M5T1G P X 7
S-1701P5015-M5T1G P X O S-1701Q5015-M5T1G P X 8
Remark Please contact the SII marketing department for products with specifications other than the above.
(k) S-1701 Series R type (l) S-1701 Series S type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701R1515-M5T1G P Y E S-1701S1515-M5T1G P Y Q
S-1701R1815-M5T1G P Y F S-1701S1815-M5T1G P Y R
S-1701R2515-M5T1G P Y G S-1701S2515-M5T1G P Y S
S-1701R2715-M5T1G P Y H S-1701S2715-M5T1G P Y T
S-1701R3015-M5T1G P Y I S-1701S3015-M5T1G P Y U
S-1701R3315-M5T1G P Y J S-1701S3315-M5T1G P Y V
S-1701R5015-M5T1G P Y K S-1701S5015-M5T1G P Y W
Remark Please contact the SII marketing department for products with specifications other than the above.
(m) S-1701 Series T type (n) S-1701 Series U type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701T1515-M5T1G P Z A S-1701U1815-M5T1G P Z R
S-1701T1815-M5T1G P Z B S-1701U2520-M5T1G P Z S
S-1701T2515-M5T1G P Z C S-1701U2521-M5T1G P Z T
S-1701T2715-M5T1G P Z D S-1701U2522-M5T1G P Z U
S-1701T3015-M5T1G P Z E S-1701U3024-M5T1G P Z V
S-1701T3315-M5T1G P Z F S-1701U3025-M5T1G P Z W
S-1701T3325-M5T1G P Z H S-1701U3026-M5T1G P Z X
S-1701T5015-M5T1G P Z G S-1701U3326-M5T1G P Z Y
S-1701U3327-M5T1G P Z Z
S-1701U3328-M5T1G P Z 3
S-1701U3430-M5T1G P Z 8
S-1701U5040-M5T1G P Z 4
S-1701U5041-M5T1G P Z 5
S-1701U5042-M5T1G P Z 6
S-1701U5043-M5T1G P Z 7
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
60
(o) S-1701 Series V type (p) S-1701 Series W type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701V1815-M5T1G P 7 E S-1701W1815-M5T1G P 7 X
S-1701V2520-M5T1G P 7 F S-1701W2520-M5T1G P 7 Y
S-1701V2521-M5T1G P 7 G S-1701W2521-M5T1G P 7 Z
S-1701V2522-M5T1G P 7 H S-1701W2522-M5T1G P 7 3
S-1701V3024-M5T1G P 7 I S-1701W3024-M5T1G P 7 4
S-1701V3025-M5T1G P 7 J S-1701W3025-M5T1G P 7 5
S-1701V3026-M5T1G P 7 K S-1701W3026-M5T1G P 7 6
S-1701V3326-M5T1G P 7 L S-1701W3326-M5T1G P 7 7
S-1701V3327-M5T1G P 7 M S-1701W3327-M5T1G P 7 8
S-1701V3328-M5T1G P 7 N S-1701W3328-M5T1G P 7 9
S-1701V3430-M5T1G P 7 S S-1701W3430-M5T1G P 8 E
S-1701V5040-M5T1G P 7 O S-1701W5040-M5T1G P 8 A
S-1701V5041-M5T1G P 7 P S-1701W5041-M5T1G P 8 B
S-1701V5042-M5T1G P 7 Q S-1701W5042-M5T1G P 8 C
S-1701V5043-M5T1G P 7 R S-1701W5043-M5T1G P 8 D
Remark Please contact the SII marketing department for products with specifications other than the above.
(q) S-1701 Series X type (r) S-1701 Series Y type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701X2219-M5T1G P 8 K S-1701Y3228-M5T1G P 8 O
S-1701X3228-M5T1G P 8 J
Remark Please contact the SII marketing department for products with specifications other than the above.
(s) S-1701 Series Z type
Product Code
Product Name (1) (2) (3)
S-1701Z3228-M5T1G P 8 T
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 61
(2) SOT-89-5
(1) to (3): Product code (refer to Product name vs. Product code)
(4) to (6): Lot number
5 4
1 3
2
(2)
SOT-89-5
Top view
(1) (3)
(5) (4) (6)
Product name vs. Product code
(a) S-1701 Series A type (b) S-1701 Series B type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701A1815-U5T1G P 6 A S-1701B1815-U5T1G P 6 R
S-1701A2520-U5T1G P 6 B S-1701B2520-U5T1G P 6 S
S-1701A2521-U5T1G P 6 C S-1701B2521-U5T1G P 6 T
S-1701A2522-U5T1G P 6 D S-1701B2522-U5T1G P 6 U
S-1701A3024-U5T1G P 6 E S-1701B3024-U5T1G P 6 V
S-1701A3025-U5T1G P 6 F S-1701B3025-U5T1G P 6 W
S-1701A3026-U5T1G P 6 G S-1701B3026-U5T1G P 6 X
S-1701A3326-U5T1G P 6 H S-1701B3326-U5T1G P 6 Y
S-1701A3327-U5T1G P 6 I S-1701B3327-U5T1G P 6 Z
S-1701A3328-U5T1G P 6 J S-1701B3328-U5T1G P 6 3
S-1701A3430-U5T1G P 6 K S-1701B3342-U5T1G P 6 8
S-1701A5040-U5T1G P 6 L S-1701B3430-U5T1G P 8 Y
S-1701A5041-U5T1G P 6 M S-1701B5040-U5T1G P 6 4
S-1701A5042-U5T1G P 6 N S-1701B5041-U5T1G P 6 5
S-1701A5043-U5T1G P 6 O S-1701B5042-U5T1G P 6 6
S-1701B5043-U5T1G P 6 7
Remark Please contact the SII marketing department for products with specifications other than the above.
(c) S-1701 Series C type (d) S-1701 Series D type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701C1815-U5T1G P 9 A S-1701D1815-U5T1G P V A
S-1701C2520-U5T1G P 9 B S-1701D2520-U5T1G P V B
S-1701C2521-U5T1G P 9 C S-1701D2521-U5T1G P V C
S-1701C2522-U5T1G P 9 D S-1701D2522-U5T1G P V D
S-1701C3024-U5T1G P 9 E S-1701D3024-U5T1G P V E
S-1701C3025-U5T1G P 9 F S-1701D3025-U5T1G P V F
S-1701C3026-U5T1G P 9 G S-1701D3026-U5T1G P V G
S-1701C3326-U5T1G P 9 H S-1701D3326-U5T1G P V H
S-1701C3327-U5T1G P 9 I S-1701D3327-U5T1G P V I
S-1701C3328-U5T1G P 9 J S-1701D3328-U5T1G P V J
S-1701C3430-U5T1G P 9 K S-1701D3430-U5T1G P V O
S-1701C5040-U5T1G P 9 L S-1701D5040-U5T1G P V K
S-1701C5041-U5T1G P 9 M S-1701D5041-U5T1G P V L
S-1701C5042-U5T1G P 9 N S-1701D5042-U5T1G P V M
S-1701C5043-U5T1G P 9 O S-1701D5043-U5T1G P V N
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
S-1701 Series Rev.2.4_00
Seiko Instruments Inc.
62
(e) S-1701 Series E type (f) S-1701 Series F type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701E1815-U5T1G P V T S-1701F1815-U5T1G P W F
S-1701E2520-U5T1G P V U S-1701F2520-U5T1G P W G
S-1701E2521-U5T1G P V V S-1701F2521-U5T1G P W H
S-1701E2522-U5T1G P V W S-1701F2522-U5T1G P W I
S-1701E3024-U5T1G P V X S-1701F3024-U5T1G P W J
S-1701E3025-U5T1G P V Y S-1701F3025-U5T1G P W K
S-1701E3026-U5T1G P V Z S-1701F3026-U5T1G P W L
S-1701E3326-U5T1G P V 3 S-1701F3326-U5T1G P W M
S-1701E3327-U5T1G P V 4 S-1701F3327-U5T1G P W N
S-1701E3328-U5T1G P V 5 S-1701F3328-U5T1G P W O
S-1701E3430-U5T1G P W A S-1701F3430-U5T1G P W T
S-1701E5040-U5T1G P V 6 S-1701F5040-U5T1G P W P
S-1701E5041-U5T1G P V 7 S-1701F5041-U5T1G P W Q
S-1701E5042-U5T1G P V 8 S-1701F5042-U5T1G P W R
S-1701E5043-U5T1G P V 9 S-1701F5043-U5T1G P W S
Remark Please contact the SII marketing department for products with specifications other than the above.
(g) S-1701 Series H type (h) S-1701 Series N type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701H5045-U5T1G T A A S-1701N1515-U5T1G P W Y
S-1701N1815-U5T1G P W Z
S-1701N2515-U5T1G P W 3
S-1701N2715-U5T1G P W 4
S-1701N3015-U5T1G P W 5
S-1701N3315-U5T1G P W 6
S-1701N5015-U5T1G P W 7
Remark Please contact the SII marketing department for products with specifications other than the above.
(i) S-1701 Series P type (j) S-1701 Series Q type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701P1515-U5T1G P X I S-1701Q1515-U5T1G P X Z
S-1701P1815-U5T1G P X J S-1701Q1815-U5T1G P X 3
S-1701P2515-U5T1G P X K S-1701Q2515-U5T1G P X 4
S-1701P2715-U5T1G P X L S-1701Q2715-U5T1G P X 5
S-1701P3015-U5T1G P X M S-1701Q3015-U5T1G P X 6
S-1701P3315-U5T1G P X N S-1701Q3315-U5T1G P X 7
S-1701P5015-U5T1G P X O S-1701Q5015-U5T1G P X 8
Remark Please contact the SII marketing department for products with specifications other than the above.
(k) S-1701 Series R type (l) S-1701 Series S type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701R1515-U5T1G P Y E S-1701S1515-U5T1G P Y Q
S-1701R1815-U5T1G P Y F S-1701S1815-U5T1G P Y R
S-1701R2515-U5T1G P Y G S-1701S2515-U5T1G P Y S
S-1701R2715-U5T1G P Y H S-1701S2715-U5T1G P Y T
S-1701R3015-U5T1G P Y I S-1701S3015-U5T1G P Y U
S-1701R3315-U5T1G P Y J S-1701S3315-U5T1G P Y V
S-1701R5015-U5T1G P Y K S-1701S5015-U5T1G P Y W
Remark Please contact the SII marketing department for products with specifications other than the above.
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.2.4_00 S-1701 Series
Seiko Instruments Inc. 63
(m) S-1701 Series T type (n) S-1701 Series U type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701T1515-U5T1G P Z A S-1701U1815-U5T1G P Z R
S-1701T1815-U5T1G P Z B S-1701U2520-U5T1G P Z S
S-1701T2515-U5T1G P Z C S-1701U2521-U5T1G P Z T
S-1701T2715-U5T1G P Z D S-1701U2522-U5T1G P Z U
S-1701T3015-U5T1G P Z E S-1701U3024-U5T1G P Z V
S-1701T3315-U5T1G P Z F S-1701U3025-U5T1G P Z W
S-1701T5015-U5T1G P Z G S-1701U3026-U5T1G P Z X
S-1701U3326-U5T1G P Z Y
S-1701U3327-U5T1G P Z Z
S-1701U3328-U5T1G P Z 3
S-1701U3430-U5T1G P Z 8
S-1701U5040-U5T1G P Z 4
S-1701U5041-U5T1G P Z 5
S-1701U5042-U5T1G P Z 6
S-1701U5043-U5T1G P Z 7
Remark Please contact the SII marketing department for products with specifications other than the above.
(o) S-1701 Series V type (p) S-1701 Series W type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701V1815-U5T1G P 7 E S-1701W1815-U5T1G P 7 X
S-1701V2520-U5T1G P 7 F S-1701W2520-U5T1G P 7 Y
S-1701V2521-U5T1G P 7 G S-1701W2521-U5T1G P 7 Z
S-1701V2522-U5T1G P 7 H S-1701W2522-U5T1G P 7 3
S-1701V3024-U5T1G P 7 I S-1701W3024-U5T1G P 7 4
S-1701V3025-U5T1G P 7 J S-1701W3025-U5T1G P 7 5
S-1701V3026-U5T1G P 7 K S-1701W3026-U5T1G P 7 6
S-1701V3326-U5T1G P 7 L S-1701W3326-U5T1G P 7 7
S-1701V3327-U5T1G P 7 M S-1701W3327-U5T1G P 7 8
S-1701V3328-U5T1G P 7 N S-1701W3328-U5T1G P 7 9
S-1701V3430-U5T1G P 7 S S-1701W3430-U5T1G P 8 E
S-1701V5040-U5T1G P 7 O S-1701W5040-U5T1G P 8 A
S-1701V5041-U5T1G P 7 P S-1701W5041-U5T1G P 8 B
S-1701V5042-U5T1G P 7 Q S-1701W5042-U5T1G P 8 C
S-1701V5043-U5T1G P 7 R S-1701W5043-U5T1G P 8 D
Remark Please contact the SII marketing department for products with specifications other than the above.
(q) S-1701 Series X type (r) S-1701 Series Y type
Product Code Product Code
Product Name (1) (2) (3) Product Name (1) (2) (3)
S-1701X3228-U5T1G P 8 J S-1701Y3228-U5T1G P 8 O
S-1701X3330-U5T1G P 8 L S-1701Y3330-U5T1G P 8 S
Remark Please contact the SII marketing department for products with specifications other than the above.
(s) S-1701 Series Z type
Product Code
Product Name (1) (2) (3)
S-1701Z3228-U5T1G P 8 T
Remark Please contact the SII marketing department for products with specifications other than the above.
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
2.9±0.2
1.9±0.2
0.95±0.1
0.4±0.1
0.16 +0.1
-0.06
123
4
5
No. MP005-A-P-SD-1.2
MP005-A-P-SD-1.2
SOT235-A-PKG Dimensions
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
ø1.5 +0.1
-0 2.0±0.05
ø1.0 +0.2
-0 4.0±0.1
1.4±0.2
0.25±0.1
3.2±0.2
123
45
No. MP005-A-C-SD-2.1
MP005-A-C-SD-2.1
SOT235-A-Carrier Tape
Feed direction
4.0±0.1(10 pitches:40.0±0.2)
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
12.5max.
9.0±0.3
ø13±0.2
(60°) (60°)
QTY. 3,000
No. MP005-A-R-SD-1.1
MP005-A-R-SD-1.1
SOT235-A-Reel
Enlarged drawing in the central part
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
1.5±0.1 1.5±0.1
1.6±0.2
4.5±0.1
132
1.5±0.1
0.4±0.05
0.4±0.1
0.45±0.1
0.4±0.1
45°
0.3
54
No. UP005-A-P-SD-1.1
UP005-A-P-SD-1.1
SOT895-A-PKG Dimensions
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
2.0±0.1
0.3±0.05
8.0±0.1
ø1.5+0.1
-0
2.0±0.05
ø1.5+0.1
-0
4.75±0.1
5° max.
1
32
54
No. UP005-A-C-SD-1.1
UP005-A-C-SD-1.1
SOT895-A-Carrier Tape
Feed direction
4.0±0.1(10 pitches : 40.0±0.2)
No.
TITLE
SCALE
UNIT mm
Seiko Instruments Inc.
16.5max.
13.0±0.3
QTY. 1,000
(60°)
(60°)
No. UP005-A-R-SD-1.1
UP005-A-R-SD-1.1
SOT895-A-Reel
Enlarged drawing in the central part
•
The information described herein is subject to change without notice.
• Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein
whose related industrial properties, patents, or other rights belong to third parties. The application circuit
examples explain typical applications of the products, and do not guarantee the success of any specific
mass-production design.
• When the products described herein are regulated products subject to the Wassenaar Arrangement or other
agreements, they may not be exported without authorization from the appropriate governmental authority.
• Use of the information described herein for other purposes and/or reproduction or copying without the
express permission of Seiko Instruments Inc. is strictly prohibited.
• The products described herein cannot be used as part of any device or equipment affecting the human
body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus
installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc.
• Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the
failure or malfunction of semiconductor products may occur. The user of these products should therefore
give thorough consideration to safety design, including redundancy, fire-prevention measures, and
malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.
