PDF AME8753 Data sheet ( Hoja de datos )

Número de pieza	AME8753
Descripción	Low Dropout 500mA / 500mA Dual CMOS LDO Regulator
Fabricantes	AME
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No Preview Available ! www.DataSheet4U.com AME, Inc. AME8753 Low Dropout 500mA / 500mA Dual CMOS LDO Regulator n General Description The AME8753 dual, low dropout, linear regulators op- erate from VOUT+VDROPOUT to 5.5V input and deliver up to 500mA / 500mA output current each. Low dropout volt- age and low quiescent current(70µA typ.)make them ideal for battery applications. The AME8753 is available with a wide variety of voltage options as standard and can be trimmed to 2% accuracy. For protection purpose,AME8753 has both thermal shut- down and current fold-back to prevent device failure under the "Worst" operating conditions. n Functional Block Diagram VIN GND Error Amp1 Current Limit R11 VOUT1 R12 Error Amp2 Current Limit Voltage Reference R21 R22 VOUT2 n Features l Very Low Dropout Voltage l Guaranteed 500mA / 500mA Each Output l Accurate to within 2% for both outputs l Typical 70 µA Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back l All AME’s Lead Free Products Meet RoHS Standards n Typical Applications Fixed Version VIN IN OUT1 AME8753A OUT2 GND VOUT1 VOUT2 1µF 1µF 1µF n Applications l Cellular Phones l Palm / Notebook l Battery Power Equipment l Handheld Instruments Rev.A.02 1 1 page AME, Inc. AME8753 Low Dropout 500mA / 500mA Dual CMOS LDO Regulator n Electrical Specifications Unless specified: T =25OC, J V =Higher IN V +1V, OUT I =I =1mA, OUT1 OUT2 CIN=COUT=1µF. Typical values are at TJ=25OC Parameter Symbol Test Condition Min Typ Max Units IN Input Supply Voltage Quiescent Current OUT1, OUT2 VIN IQ Note1 5.5 V 70 160 µA Output Voltage Line Regulation VOUT REGLINE IOUT=1mA -2% 0mA<IOUT<=500mA, VOUT+1V<VIN<5.5V VOUT+1V<VIN<5.5V TJ=-40oC to +125oC -2.5% TJ=25oC -0.2 IOUT=1mA TJ=-40oC to +125oC -0.25 2% 2.5% V 0.2 %/V 0.25 Load Regulation REGLOAD 1mA<IOUT TJ=-40oC to +125oC -0.005 +0.0025 0.005 %/mA Dropout Voltage Current Limit Short Circuit Current Ripple Rejection VDROP ILIM ISC PSRR IOUT1=IOUT2=500mA (VO=VO(NOM)-2%), VO(NOM)>=2.5V TJ=-40oC to +125oC 700 f=100HZ, IOUT=1mA f=1kHZ, IOUT=1mA f=10kHZ, IOUT=1mA 800 mV 1400 mA 350 500 55 55 dB 48 Output Voltage Noise Over Temperature Protection Over Temperature Shutdown Over Temperature Hysteresis en OTS OTH f=1kHz to 100kHz, COUT=1µF 550 µVRMS 150 oC 20 oC Note1: VIN(min)=HigherVOUT+ VDropout Rev.A.02 5 5 Page www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. © AME, Inc. , February 2007 Document: 2075-DS8753-A.02 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 U.S.A. (Subsidiary) Analog Microelectronics, Inc. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2438 Tel : (408) 988-2388 Fax: (408) 988-2489 11 Page

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