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AAT3238IGU-1.8-T1

更新时间： 2025-07-25 03:43:55

品牌	Logo	应用领域
ANALOGICTECH		稳压器电源电路
页数	文件大小	规格书
14页	318K
描述
300mA MicroPower⑩ High Performance LDO Linear Regulator

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AAT3238

300mA MicroPower™

High Performance LDO Linear Regulator

™

PowerLinear

General Description

Features

The AAT3238 MicroPower low dropout (LDO) linear

regulator is ideally suited for portable applications

where very fast transient response, extended battery

life, and small size are critical. The AAT3238 has

been specifically designed for high-speed turn-on

and turn-off performance, fast transient response,

good power supply ripple rejection (PSRR), and is

reasonably low noise, making it ideal for powering

sensitive circuits with fast switching requirements.

•

Low Dropout: 400mV at 300mA

Guaranteed 300mA Output

High Accuracy: ±1.5%

70µA Quiescent Current

Fast Line and Load Transient Response

High-Speed Device Turn-On and Shutdown

High Power Supply Ripple Rejection

Low Self Noise

Short-Circuit Protection

Over-Temperature Protection

Uses Low Equivalent Series Resistance

(ESR) Ceramic Capacitors

Noise Reduction Bypass Capacitor

Shutdown Mode for Longer Battery Life

Low Temperature Coefficient

Other features include low quiescent current, typical-

ly 70µA, and low dropout voltage, typically less than

400mV at the maximum output current level of

300mA. The device is output short-circuit protected

and has a thermal shutdown circuit for additional pro-

tection under extreme operating conditions.

•

Factory-Programmed Output Voltages

SOT23 6-Pin or SC70JW 8-Pin Package

The AAT3238 also features a low-power shutdown

mode for extended battery life. A reference bypass

pin has been provided to improve PSRR perform-

ance and output noise by connecting a small exter-

nal capacitor from the AAT3238's reference output to

ground.

Applications

The AAT3238 is available in a Pb-free, space-saving

6-pin SOT23 or 8-pin SC70JW package in factory-

programmed voltages.

•

Cellular Phones

Digital Cameras

Notebook Computers

Personal Portable Electronics

Portable Communication Devices

Typical Application

V_IN

V_OUT

OUT

BYP

AAT3238

ON/OFF

GND

1μF

10nF

2.2μF

GND

3238.2006.11.1.6

12 3 4 5 6 7...14

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