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RICOH RP171x SERIES Guide(1)

1. RP171x Series The RP171x Series are CMOS based LDO regulators featuring 150mA output current Due to the 10V maximum input voltage RP171x can be used for 2 cell lithium ion battery powered portable appliances and home appliances RP171x has a fold back protection circuit a thermal shutdown circuit and a constant slope circuit SC 88A and SOT 23 5 packages are available e Supply Current Iss cite Typ 23uA Vin SET Vout 1 0V Temp coeff of Output Voltage Typ 80ppm C Standby Current Istandby srt Typ 0 1uA Vin 10 0V CE L Line Regulation eeeeeteeeereeeeeeeeeeee Typ 0 02 V Dropout Voltage Vor strrttttttt Typ 0 4V lout 150mA Vout 2 8V Fold back Protection Circuite Current limit Typ 40mA Ripple Rejection RR Typ 70dB f 1kHz e Constant Slope Circuit Input Voltage Range VIN ttt 2 6V to 10 0V Thermal Shutdown Circuit eee Stops at 165 C e Output Voltage Range Vout e 1 2V to 6 0V internally fixed e Auto Discharge function eeeeeses D Version Output Voltage Accuracy sr 1 Packages res SC 88A SOT 23 5 e Ceramic capacitors can be used 1uF or more The above shows specification at Topt 25 C Design assurance value at 40 C lt Topt lt 85 C is also available For details please refer to the datasheet BLOCK DIAGRAMS RP171xxxxB RP171xxxxD Without Auto Discharge function With Auto Discharge function Halogen Free Q ty per Reel Part
2. No xx Specify the output voltage within the range of 1 2V 12 to 6 0V 60 a 2000 MBAS 2 IRE aise a without auto discharge function or ous SOUU PCS ae D with auto discharge function PACKAGES Top View TYPICAL CHARACTERISTIC SC 88A SOT 23 5 RP171x30xx Dropout Voltage vs Output Current 5 4 5 4 0 40 S 0 35 amp 0 30 o 0 25 1 2 3 1 2 3 T 0 20 CE VoD 2 NC GND ae GND CE S 0 10 VouT NC Q 0 05 VDD VouT 0 0 30 60 90 120 150 Output Current lout mA APPLICATIONS e Power source for hand held communication equipment and laptop personal computers e Power source for home appliances e Power source for digital SLRs and VCRs e Power source for battery powered equipment No EK 245 110301 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 an
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4. d 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 soacevehicle 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 product
5. s 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 continually strives to promote customer satisfaction and shares the achievements of its management quality improvement program with people and society Ricoh presented with the Japan Management Quality Award for 1999 z WRicoh awarded ISO 14001 certification Our current aim is to obtain ISO 14001 certification for all of our business offices 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 http www ri coh com LS I ED RoHS After Apr 1 2006 we will ship out the lead free products only Thus all products that Compl iant will be shipped from now on comply with RoHS Directive Ricoh completed the organization of the Lead free production for all of our products 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 Netherl

RICOH RP171x SERIES Guide(1)

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