Datasheet > AAT1152IKS-3.0-T1

AAT1152IKS-3.0-T1

更新时间： 2022-11-24 22:00:29

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
18页	328K
描述
850kHz 1A Synchronous Buck DC/DC Converter

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AAT1152

850kHz 1A Synchronous Buck DC/DC Converter

™

SwitchReg

General Description

Features

The AAT1152 SwitchReg™ is a member of

AnalogicTech™'s Total Power Management™ IC

product family. The Step-down switching converter

is ideal for applications where high efficiency, small

size, and low ripple are critical. Able to deliver 1A

with internal Power MOSFETs, the current-mode

controlled IC provides high efficiency using syn-

chronous rectification. Fully internally compensat-

ed, the AAT1152 simplifies system design and low-

ers external part count.

•

5.5V max supply input

Fixed output voltage: 1.1V–4.2V with 100 mV

increment

•

1A output current

Integrated low on resistance power switches

Synchronous rectification

Up to 95% efficiency

Power Good signal

Internally compensated current mode control

High initial accuracy: ±1%

850kHz switching frequency

Constant PWM mode

The AAT1152 features a Power Good (POK) func-

tion which monitors the output, alerting the system

if the output voltage falls out of regulation.

Low output ripple with light load

Internal softstart

The AAT1152 is available in MSOP-8 package,

rated over -40 to 85°C.

Current limit protection

Over-Temperature protection

MSOP-8 package

Applications

•

Computer Peripherals

Set Top Boxes

Network Cards

Cable/DSL Modems

High efficiency conversion from 5V or 3.3V

supply

Typical Application

INPUT

V_P

100k

10µF

AAT1152

POK

4.1µH

ENABLE

V_CC

100Ω

0.1µF

OUTPUT

47µF

P_GND

SGND

1152.2003.01.0.9

12 3 4 5 6 7...18

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