Datasheet > AAT2158

AAT2158

更新时间： 2024-02-26 09:48:04

品牌	Logo	应用领域
ANALOGICTECH		转换器
页数	文件大小	规格书
18页	702K
描述
1.5A 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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AAT2158 数据手册

AAT2158

1.5A Low Noise Step-Down Converter

™

SwitchReg

General Description

Features

The AAT2158 SwitchReg is a 1.5A step-down con-

verter with an input voltage range of 2.4V 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 AAT2158 an ideal

choice for portable applications.

•

1.5A Maximum Output Current

Input Voltage: 2.4V 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

The AAT2158 delivers 1.5A 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 AAT2158 an

ideal choice for high output voltage, high current

applications which require a low dropout threshold.

Over-Temperature and Current Limit

Protection

•

<1µA Shutdown Current

16-Pin 3x3mm QFN Package

Temperature Range: -40°C to +85°C

The AAT2158 provides excellent transient

response and high output accuracy across the

operating range. No external compensation com-

ponents are required.

The AAT2158 maintains high efficiency throughout

the load range. The AAT2158’s unique architecture

produces reduced ripple and spectral noise. Over-

temperature and short-circuit protection safeguard

the AAT2158 and system components from damage.

Applications

•

Cellular Phones

Digital Cameras

Hard Disk Drives

MP3 Players

PDAs and Handheld Computers

Portable Media Players

USB Devices

The AAT2158 is available in a Pb-free, space-sav-

ing 16-pin 3x3mm QFN package. The product is

rated over an operating temperature range of -40°C

to +85°C.

Typical Application

AAT2158

3.3V

2.5V

187k

2.2µH

10µF

VCC

N/C

59k

PGND

22µF

SGND PGND

2158.2007.10.1.1

12 3 4 5 6 7...18

中文翻译

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与AAT2158相关器件

型号	品牌	获取价格	描述	数据表
AAT2158_08	ANALOGICTECH	获取价格	1.5A Low Noise Step-Down Converter
AAT2158_0810	ANALOGICTECH	获取价格	1.5A Low Noise Step-Down Converter
AAT2158IVN-0.6-T1	ANALOGICTECH	获取价格	1.5A Low Noise Step-Down Converter
AAT2315_07	ANALOGICTECH	获取价格	Dual 600mA Step-Down Converter with Synchronization
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AAT2430BIDX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430BISX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430C	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control
AAT2430CIDX-T1	SKYWORKS	获取价格	16 Channel White LED Driver Solution with LED Current and Timing Control

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