AAT1155IKS-1.8-T1 Advanced Analogic Technologies, Inc., AAT1155IKS-1.8-T1 Datasheet

AAT1155IKS-1.8-T1

Manufacturer Part Number

AAT1155IKS-1.8-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheets

1.AAT1155IKS-1.8-T1.pdf (17 pages)

2.AAT1155IKS-1.8-T1.pdf (16 pages)

Specifications of AAT1155IKS-1.8-T1

Date_code

05+

Packing_info

MSCP-8

Current page: 1 of 16
Download datasheet (438Kb)

General Description

The AAT1155 SwitchReg™ is a member of

AnalogicTech™'s Total Power Management™ IC

product family. The Step-down switching converter

is ideal for applications where high efficiency, small

size, and low ripple are critical. Able to deliver 2.5A

with an internal power MOSFET, the current-mode

controlled IC provides high efficiency. Fully inter-

nally compensated, the AAT1155 simplifies system

design and lowers external part count.

The AAT1155 is available in an MSOP-8 package,

rated over -40 to 85°C.

1155.2004.08.1.2

Typical Application

INPUT

0.1 F

10 F

100

ENABLE

AAT1155

SGND

GND

1MHz 2.5A Buck DC/DC Converter

Features

•

Applications

•

5.5V max supply input

-40 to 85°C Temperature Range

Fixed output voltage: 1.0V - 4.2V

2.5A output current

Integrated low on resistance power switches

Internally compensated current mode control

1MHz switching frequency

Fixed or adjustable V

Constant PWM mode

Low output ripple with light load

Internal softstart

Current limit protection

Over-Temperature protection

MSOP-8 package

Up to 95% efficiency

Computer Peripherals

Set Top Boxes

Network Cards

Cable/DSL Modems

High efficiency conversion from 5V or 3.3V

supply

1.5 H

120 F

OUT

SwitchReg

: 1.0 to 4.2V

OUTPUT

AAT1155

™

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