Datasheet > AAT3215

AAT3215

更新时间： 2024-02-12 10:58:13

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描述
150mA CMOS High Performance LDO

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AAT3215 数据手册

AAT3215

150mA CMOS High Performance LDO

™™

SPmowaerrtSLwinietachr

General Description

Features

The AAT3215 MicroPower™ low dropout (LDO)

linear regulator is ideally suited for portable appli-

cations where low noise, extended battery life, and

small size are critical. The AAT3215 has been

specifically designed for very low output noise per-

formance, fast transient response, and high power

supply rejection ratio (PSRR), making it ideal for

powering sensitive RF circuits.

•

Low Dropout: 140mV at 150mA

Guaranteed 150mA Output

High Accuracy ±1.5%

95µA Quiescent Current

High Power Supply Ripple Rejection

— 70dB at 1kHz

— 50dB at 10kHz

•

Very Low Self Noise: 45µVrms

Fast Line and Load Transient Response

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

Ten Factory-Programmed Output Voltages

SOT23 5-Pin or SC70JW 8-Pin Package

Other features include low quiescent current, typi-

cally 95µA, and low dropout voltage which is typi-

cally less than 140mV at full output current. The

device is output short-circuit protected and has a

thermal shutdown circuit for additional protection

under extreme conditions.

•

The AAT3215 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 an external

capacitor from the AAT3215's reference output to

ground.

The AAT3215 is available in a Pb-free, space-saving

5-pin SOT23 or 8-pin SC70JW package in ten fac-

tory-programmed voltages: 2.5V, 2.6V, 2.7V, 2.8V,

2.85V, 2.9V, 3.0V, 3.1V, 3.3V, or 3.6V.

Applications

•

Bluetooth™ Headsets

Cellular Phones

Digital Cameras

Notebook Computers

Personal Portable Electronics

Portable Communication Devices

Typical Application

V_IN

V_OUT

OUT

BYP

AAT3215

ON/OFF

GND

1μF

10nF

2.2μF

GND

3215.2006.05.1.6

12 3 4 5 6 7...18

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