Datasheet > AAT1154IAS-1.0T1

AAT1154IAS-1.0T1

更新时间： 2022-07-23 14:25:52

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
16页	559K
描述
1MHz 3A Buck DC/DC Converter

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AAT1154IAS-1.0T1 数据手册

AAT1154

1MHz 3A Step-Down DC/DC Converter

™

SwitchReg

General Description

Features

The AAT1154 SwitchReg is a step-down switching

converter ideal for applications where high efficien-

cy, small size, and low ripple are critical. Able to

deliver 3A with an internal power MOSFET, the cur-

rent-mode controlled IC provides high efficiency.

Fully internally compensated, the AAT1154 simpli-

fies system design and lowers external parts count.

•

V_INRange: 2.7V to 5.5V

Fixed or Adjustable V_OUT: 1.0V to 4.2V

3A Output Current

Up to 95% Efficiency

Integrated Low On Resistance Power Switch

Internally Compensated Current Mode Control

1MHz Switching Frequency

Constant Pulse Width Modulation (PWM)

Mode

Low Output Ripple With Light Load

Internal Soft Start

Current Limit Protection

The AAT1154 is available in a Pb-free SOP-8 pack-

age and is rated over the -40°C to +85°C tempera-

ture range.

•

Over-Temperature Protection

SOP-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

100Ω

AAT1154

1.5μH

VCC

0.1μF

OUTPUT

120μF

GND

1154.2006.09.1.6

12 3 4 5 6 7...16

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