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AAT1156IVN-T1

更新时间： 2024-02-13 05:10:44

品牌	Logo	应用领域
ANALOGICTECH		转换器稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
14页	425K
描述
1MHz 700mA Step-Down DC-DC Converter

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技术参数
数据手册

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AAT1156IVN-T1 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.69
Is Samacsys：	N	Base Number Matches：	1

AAT1156IVN-T1 数据手册

AAT1156

1MHz 700mA Step-Down DC-DC Converter

™

SwitchReg

General Description

Features

The AAT1156 SwitchReg™ is a member of

AnalogicTech™'s Total Power Management IC™

(TPMIC™) product family. The step-down switching

converter is ideal for applications where high effi-

ciency is required over the full range of load condi-

tions. The 2.7V to 5.5V input voltage range makes

the AAT1156 ideal for single-cell lithium-ion/polymer

battery applications. Capable of more than 700mA

with internal MOSFETs, the current-mode con-

trolled IC provides high efficiency over a wide oper-

ating range. Fully integrated compensation simpli-

fies system design and lowers external parts count.

•

V_INRange: 2.7 to 5.5 Volts

Up to 95% Efficiency

110mΩ R_DS(ON)Internal Switches

<1µA Shutdown Current

1MHz Step-Down Switching Frequency

Fixed or Adjustable V_OUT≥ 0.8V

Integrated Power Switches

Current Mode Operation

Internal Compensation

Stable with Ceramic Capacitors

Internal Soft Start

Over-Temperature Protection

Current Limit Protection

16-Pin QFN 3x3mm Package

-40°C to +85°C Temperature Range

The AAT1156 is available in the 16-pin 3x3mm

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

temperature range.

Applications

•

Cellular Phones

Digital Cameras

MP3 Players

Notebook Computers

PDAs

Wireless Notebook Adapters

Typical Application

AAT1156 Efficiency

(V_OUT= 2.5V; L = 4.7µH; CDRH3D16)

AAT1156

INPUT

2.5V

100

VCC

187k

100

V_IN= 3.0V

4.7µH

10µF

V_IN= 4.2V

V_IN= 3.6V

59k

C3, C4

2 x 22µF

PGND

0.1 µF

SGND PGND

100

1000

C1 Murata 10µF 6.3V X5R GRM42-6X5R106K6.3

C3-C4 MuRata 22µF 6.3V GRM21BR60J226ME39L X5R 0805

L1 Sumida CDRH3D16-4R7NC

Output Current (mA)

1156.2005.11.1.2

12 3 4 5 6 7...14

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