Datasheet > AAT2153

AAT2153

更新时间： 2024-01-04 13:56:43

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
17页	2557K
描述
2.5A Low Noise Step-Down Converter

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中文翻译

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数据手册

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AAT2153 数据手册

PRODUCT DATASHEET

AAT2153

SwitchReg

2.5A Low Noise Step-Down Converter

General Description

Features

The AAT2153 SwitchReg is a 2.5A step-down converter

with an input voltage range of 2.7V to 5.5V and an

adjustable output voltage from 0.6V to V_IN. The 1.4MHz

switching frequency enables the use of small external

components. The small footprint and high efficiency make

the AAT2153 an ideal choice for portable applications.

• 2.5A Maximum Output Current

• Input Voltage: 2.7V to 5.5V

• Output Voltage: 0.6V to V_IN

• Up to 95% Efficiency

• Low Noise Light Load Mode

• 42μA No Load Quiescent Current

• No External Compensation Required

• 1.4MHz Switching Frequency

• 100% Duty Cycle Low-Dropout Operation

• Internal Soft Start

• Over-Temperature and Current Limit Protection

• <1μA Shutdown Current

• 16-Pin 3x3mm QFN Package

• Temperature Range: -40°C to +85°C

The AAT2153 delivers 2.5A maximum output current

while consuming only 42μA of no-load quiescent current.

Ultra-low R_DS(ON)integrated MOSFETs and 100% duty

cycle operation make the AAT2153 an ideal choice for

high output voltage, high current applications which

require a low dropout threshold.

The AAT2153 provides excellent transient response and

high output accuracy across the operating range. No

external compensation components are required.

Applications

The AAT2153 maintains high efficiency throughout the

load range. The AAT2153’s unique architecture produces

reduced ripple and spectral noise. Over-temperature and

short-circuit protection safeguard the AAT2153 and sys-

tem components from damage.

• Cellular Phones

• Digital Cameras

• Hard Disk Drives

• MP3 Players

• PDAs and Handheld Computers

• Portable Media Players

• USB Devices

The AAT2153 is available in a Pb-free, space-saving

16-pin 3x3mm QFN package. The product is rated over

an operating temperature range of -40°C to +85°C.

Typical Application

3.3V

2.5V

AAT2153

187k

2.2µH

10µF

VCC

N/C

59k

PGND

22µF

SGND PGND

w w w . a n a l o g i c t e c h . c o m

2153.2008.09.1.0

12 3 4 5 6 7...17

中文翻译

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与AAT2153相关器件

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