R5326K Series Automatic Mode Shift Low Voltage Dual 150mA LDO The R5326K Series are CMOS-based auto mode switching dual LDO regulators featuring 150mA output. In auto switching mode, the operation can switch automatically to a fast response mode or a low power mode of the ECO function according to output current. (Automatic switching to fast response mode under IOUT > 3mA conditions or to low power mode under IOUT > 0.6mA conditions.) In low power mode, supply current is as low as 5.5A. In fast response mode, ripple rejection is 70dB and noise is low. R5326K requires neither ECO pin for switching mode nor microcontroller pin. R5326K supports low voltage, featuring input voltage from 1.4V and output voltage from 0.8V. Standby mode and auto-discharge function are also available (see the Selection Guide). Ceramic capacitors can be used. FEATURES * Supply Current (ISS2) *********************** Typ. 50A x 2 (Fast mode, VIN=VSET+1.0V) * Supply Current (ISS1) *********************** Typ. 5.5A x 2 (Low power mode, same as above) * Standby Current (Istandby) ***************** Typ. 0.1A x 2 (VIN=6.0V, CE1/CE2="L") * Dropout Voltage (VDIF) ******************** Typ. 0.19V (IOUT=150mA, VSET=2.8V) * Ripple Rejection (RR)********************* Typ. 70dB (f=1kHz), Typ. 60dB (f=10kHz) * Input Voltage Range (VIN) *************** 1.4V to 6.0V * Output Voltage Range (VOUT)********** 0.8V to 4.2V (Internally fixed) * Output Voltage Accuracy **************** 1% * Temp. coeff. of Output Voltage *******Typ. 100ppm/C * Line Regulation*******************************Typ. 0.02%/V (Fast mode) * Fold-back Protection Circuit ***********Current limit Typ. 50mA * Auto-discharge Function*****************B Version * Package******************************************DFN(PLP)1820-6 * Ceramic capacitors can be used. ***1F to 3.3F ) For information about combination of output voltage, please check our website. BLOCK DIAGRAMS R5326KxxxA R5326KxxxB (Without Auto-discharge function) (With Auto-discharge function) CE1 CE1 VOUT1 VOUT1 R1_1 Error Amp. Vref R1_1 Error Amp. Vref R2_1 Current Limit R2_1 Current Limit VDD VDD GND GND R1_2 R1_2 Error Amp. Error Amp. Vref Vref R2_2 Current Limit VOUT2 CE2 R2_2 Current Limit VOUT2 CE2 SELECTION GUIDE Package Q'ty per Reel DFN(PLP)1820-6 Part No. 5,000 pcs R5326K.xxx -TR .xxx : Specify a combination of output voltage for each output using serial numbers. . : Select from (.A.) without auto-discharge function or (.B.) with auto-discharge function. PACKAGE TYPICAL CHARACTERISTIC R5326K (VR1/VR2) Dropout Voltage vs. Output Current DFN(PLP)1820-6 Top View 6 5 Bottom View 4 4 5 6 1 2 3 1 2 3 4 5 6 3 2 VSET=2.8V 0.30 1 VOUT2 VDD VOUT1 CE1 GND CE2 ) The tab is substrate level (GND). Dropout Voltage VDIF (V) Halogen Free 85C 25C -40C 0.25 0.20 0.15 0.10 0.05 0 0 25 50 75 100 125 Output Current IOUT (mA) 150 APPLICATIONS * Power source for hand-held communication equipment, cameras, and VCRs * Power source for home appliances No.EK-138-121001 * Power source for battery-powered equipment Dual 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. Halogen Free For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material. 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. Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are also Antimony Free.) RICOH COMPANY, LTD. Electronic Devices Company http://www.ricoh.com/LSI/ RICOH COMPANY, LTD. Electronic Devices Company Higashi-Shinagawa Office (International Sales) 3-32-3, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-8655, Japan Phone: +81-3-5479-2857 Fax: +81-3-5479-0502 RICOH EUROPE (NETHERLANDS) B.V. 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