AAT1162 データシートの表示（PDF） - Advanced Analogic Technologies

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AAT1162

12V, 1.5A Step-Down DC/DC Converter

Advanced Analogic Technologies 

SwitchRegTM

General Description

The AAT1162 is an 800kHz high efficiency step-down

DC/DC converter. With a wide input voltage range of

4.0V to 13.2V, the AAT1162 is an ideal choice for dual-

cell Lithium-ion battery-powered devices and mid-pow-

er-range regulated 12V-powered industrial applications.

The internal power switches are capable of delivering up

to 1.5A to the load.

The AAT1162 is a highly integrated device, simplifying

system-level design. Minimum external components are

required for the converter.

The AAT1162 optimizes efficiency throughout the entire

load range. It operates in a combination PWM/Light Load

mode for improved light-load efficiency. The high switch-

ing frequency allows the use of small external compo-

nents. The low current shutdown feature disconnects the

load from VIN and drops shutdown current to less than

1μA.

The AAT1162 is available in a Pb-free, space-saving,

thermally-enhanced 16-pin TDFN34 packageand is rated

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

PRODUCT DATASHEET

AAT1162

12V, 1.5A Step-Down DC/DC Converter

Features

• Input Voltage Range: 4.0V to 13.2V

• Up to 1.5A Load Current

• Fixed or Adjustable Output:

▪ Output Voltage: 0.6V to VIN

• Low 115μA No-Load Operating Current

• Less than 1μA Shutdown Current

• Up to 96% Efficiency

• Integrated Power Switches

• 800kHz Switching Frequency

• Soft Start Function

• Short-Circuit and Over-Temperature Protection

• Minimum External Components

• TDFN34-16 Package

• Temperature Range: -40°C to +85°C

Applications

• Distributed Power Systems

• Industrial Applications

• Laptop Computers

• Portable DVD Players

• Portable Media Players

• Set-Top Boxes

• TFT LCD Monitors and HDTVs

Typical Application

Input:

4.0V ~ 13.2V

C6

R4

10μF

10

C8

1μF

R5

24k

C7

330pF

C2

0.1μF

C9

1μF

IN

LX

EN

DGND

FB

AIN AAT1162

COMP

LDO

PGND

AGND

L1

2.2 to 4.7μH

Output:

0.6V min,

1.5A max

C3

22μF

1162.2008.01.1.3

www.analogictech.com

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