Datasheet > AAT1150_06

AAT1150_06

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
17页	623K
描述
1MHz 1A Step-Down DC/DC Converter

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AAT1150_06 数据手册

AAT1150

1MHz 1A Step-Down DC/DC Converter

™

SwitchReg

General Description

Features

The AAT1150 SwitchReg™ is a step-down switch-

ing converter ideal for applications where high effi-

ciency, small size, and low ripple are critical. Able

to deliver 1A with internal power MOSFETs, the

current-mode controlled IC provides high efficiency

using synchronous rectification. Fully internally

compensated, the AAT1150 simplifies system

design and lowers external parts count.

•

V_INRange: 2.7V to 5.5V

Up to 95% Efficiency

110mΩ R_DS(ON)MOSFET Switch

<1.0μA of Shutdown Current

1MHz Switching Frequency

Fixed or Adjustable V_OUT: 1.0V to 4.2V

High Initial Accuracy: ±1%

1.0A Peak Current

Integrated Power Switches

Synchronous Rectification

Internally Compensated Current Mode Control

Constant PWM Mode for Low Output Ripple

Internal Soft Start

The AAT1150 is available in a Pb-free MSOP-8

package and is rated over the -40°C to +85°C tem-

perature range.

Current Limit Protection

Over-Temperature Protection

MSOP-8 package

-40°C to +85°C Temperature Range

Applications

•

Cable/DSL Modems

Computer Peripherals

High Efficiency Conversion From 5V or 3.3V

Supply

•

Network Cards

Set-Top Boxes

Typical Application

INPUT

10μF

AAT1150

4.1μH

ENABLE

VCC

100Ω

0.1μF

OUTPUT

3x 22μF

PGND

SGND

1150.2006.09.1.5

12 3 4 5 6 7...17

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