Datasheet > AAT3258_06

AAT3258_06

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		稳压器微处理器
页数	文件大小	规格书
16页	262K
描述
300mA LDO Linear Regulator with レP Reset

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AAT3258_06 数据手册

AAT3258

300mA LDO Linear Regulator with µP Reset

™

PowerLinear

General Description

Features

The AAT3258 combines a high performance, low

noise, 300mA low dropout (LDO) linear regulator

with a microprocessor reset monitor. The 300mA

output capability of the LDO regulator makes this

device ideal for use with microprocessors and DSP

cores in portable products. The microprocessor

reset monitor section has very low quiescent cur-

rent consumption and has an active low reset out-

put. The AAT3258 has separate input pins for the

reset monitor and LDO regulator so they may be

operated from independent sources for increased

design flexibility. This device features very low qui-

escent current, typically less than 71µA.

•

Integrated LDO Regulator with µP Reset

300mA Output LDO Regulator

Low Dropout Regulator, 400mV at 300mA

High LDO Output Voltage Accuracy, Typically

1.5%

•

Very Low Noise and High Power Supply

Rejection Ratio (PSRR) LDO

•

Low Quiescent Current at 71µA

LDO Over-Current/Short-Circuit Protection

LDO Over-Temperature Protection

LDO Power Saving Shutdown Mode

Independent Device Power Inputs

High Accuracy Reset Monitor Threshold: ±1.5%

Active Low Push-Pull Monitor Reset Output

<2.0µA of Shutdown Current

Uses Low Equivalent Series Resistance

(ESR) Ceramic Capacitors

-40°C to +85°C Temperature Range

8-Pin TSOPJW Package

The LDO regulator has low dropout voltage, typical-

ly 400mV at the full output current level, making it

ideal for portable applications where extended bat-

tery life is critical. The AAT3258 LDO regulator sec-

tion has complete over-current/short-circuit and

over-temperature protection circuits to guard against

extreme operating conditions. The device also has

an active output pull down function when disabled.

•

The AAT3258 is available in a Pb-free, space-sav-

ing 8-pin TSOPJW package. This device is capa-

ble of operation over a -40°C to +85°C temperature

range.

Applications

•

Cellular Phones

Digital Cameras

Handheld Instrumentation

Microprocessor/DSP Core/IO Power

Notebook Computers

PDAs and Handheld Computers

Portable Communication Devices

Typical Application

100k

VIN

VDET

VIN

RESET

VOUT

RESET OUT

LDO VOUT

AAT3258

µP Reset

Manual Reset

GND

BYP

1µF

SHDN

2.2µF

LDO Shutdown

10nF

3258.2006.03.1.6

12 3 4 5 6 7...16

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