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 17
Download datasheet (531Kb)

General Description

The AAT1155 SwitchReg is a step-down switching

converter ideal for applications where high efficien-

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

deliver 2.5A with an internal power MOSFET, the

current-mode controlled IC provides high efficien-

cy. Fully internally compensated, the AAT1155 sim-

plifies system design and lowers external parts

count.

The AAT1155 is available in a Pb-free MSOP-8

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

perature range.

1155.2006.09.1.7

Typical Application

INPUT

0.1μF

10μF

100Ω

VCC

AAT1155

GND

1MHz 2.5A Step-Down DC/DC Converter

Features

•

Applications

•

5.5V Max Supply Input

Fixed or Adjustable V

2.5A Output Current

Up to 95% Efficiency

Integrated Low On Resistance Power

Switches

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

Over-Temperature Protection

MSOP-8 Package

-40°C to +85°C Temperature Range

Cable/DSL Modems

Computer Peripherals

High Efficiency Conversion from 5V or 3.3V

Supply

Network Cards

Set-Top Boxes

1.5μH

120μF

OUT

SwitchReg

: 1.0V to 4.2V

OUTPUT

AAT1155

™

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