R1161x Series Low Voltage 300mA LDO with ECO pin The R1161x Series are CMOS-based LDO regulators with ECO pin featuring 300mA output. By inputting control signals from the ECO pin, the mode of the regulator can be switched to low power mode or fast response mode, thus making both active and sleep modes available for the system. The CE pin can switch the regulator into standby mode. FEATURES * Supply Current (ISS1) *****************Typ. 60A (Fast mode, VIN=SET VOUT+1V) * Supply Current (ISS2) *****************Typ. 4.5A (Low power mode, same as above) * Standby Current (Istandby) ************Typ. 0.1A (Same as above, in standby) * Dropout Voltage (VDIF) **************Typ. 0.23V (Fast mode, IOUT=300mA) Typ. 0.24V (Low power mode, IOUT=300mA) * Ripple Rejection (RR)****************Typ. 65dB (Fast mode, f=1kHz) * Input Voltage Range (VIN) **********1.4V to 6.0V * Output Voltage Range (VOUT)*****0.8V to 3.3V (internally fixed) * Output Voltage Accuracy **************** 2% (Fast mode) 3% (Low power mode) * Temp. coeff. of Output Voltage *******Typ. 100ppm/C * Line Regulation*******************************Typ. 0.01%/V (Fast mode) * Fold-back Protection Circuit************Current limit Typ. 50mA * Auto-Discharge function *****************D Version * Packages ****************************************SON-6, SOT-23-5, HSON-6 * Ceramic capacitors can be used. ***1F or more (VOUT >= 1.0V) ) at VOUT=2.8V BLOCK DIAGRAMS R1161xxxxA R1161xxxxB R1161xxxxD ( CE pin "L" active) (CE pin "H" active) (With Auto-Discharge function) ECO ECO VOUT VDD ECO VDD VDD VOUT Vref VOUT Vref Current Limit Vref Current Limit GND CE Current Limit CE GND GND CE SELECTION GUIDES Quantity per Reel Part No. 3,000 pcs R1161D.xx.1. -TR-F 3,000 pcs R1161N.xx.1. -TR-F 3,000 pcs R1161D.xx.2. -TR-F .xx. : Specify the output voltage within the range 0.8V (.08.) to 3.3V (.33.) in 0.1V steps. . : Select the polarity of the CE pin from (.A.) "L" active, (.B.) "H" active or (.D.) "H" active with auto-discharge function. PACKAGES (Top View) SON-6 6 5 4 TYPICAL CHARACTERISTIC SOT-23-5 HSON-6 5 6 4 5 1 1 2 3 4 5 6 2 3 VDD NC VOUT ECO GND CE or CE R1161x26xx 4 1 1 2 3 4 5 2 3 VDD GND CE or CE ECO VOUT 1 1 2 3 4 5 6 2 3 VDD NC VOUT ECO GND CE or CE Dropout Voltage vs. Output Current (Fast Response Mode) ECO=H 0.40 Dropout Voltage VDIF (V) Package SON-6 SOT-23-5 HSON-6 85C 25C -40C 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 150 200 250 Output Current IOUT (mA) 300 ) The tab and tab suspension leads on back side are substrate level (GND). APPLICATIONS * Power source for hand-held communication equipment, cameras, and VCRs * Very stable voltage reference No.EK-111-091101 * Power source for battery-powered equipment CMOS LDO Regulator 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, firecontainment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this document. 8. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information. RICOH COMPANY., LTD. Electronic Devices Company Ricoh presented with the Japan Management Quality Award for 1999. Ricoh awarded ISO 14001 certification. Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. The Ricoh Group was awarded ISO 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO 14001 certification for all of our business offices. http://www.ricoh.com/LSI/ RICOH COMPANY, LTD. Electronic Devices Company Shin-Yokohama office (International Sales) 3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8530, Japan Phone: +81-45-477-1697 Fax: +81-45-477-1698 RICOH EUROPE (NETHERLANDS) B.V. Semiconductor Support Centre Prof. W.H.Keesomlaan 1, 1183 DL Amstelveen, The Netherlands P.O.Box 114, 1180 AC Amstelveen Phone: +31-20-5474-309 Fax: +31-20-5474-791 RICOH ELECTRONIC DEVICES KOREA Co., Ltd. 11 floor, Haesung 1 building, 942, Daechidong, Gangnamgu, Seoul, Korea Phone: +82-2-2135-5700 Fax: +82-2-2135-5705 RICOH ELECTRONIC DEVICES SHANGHAI Co., Ltd. Room403, No.2 Building, 690#Bi Bo Road, Pu Dong New district, Shanghai 201203, People's Republic of China Phone: +86-21-5027-3200 Fax: +86-21-5027-3299 RICOH COMPANY, LTD. Electronic Devices Company Taipei office Room109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.) Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623 Ricoh completed the organization of the Lead-free production for all of our products. After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.