AAT2515IWP-AA-T1 datasheet(1/20 Pages) ANALOGICTECH

Part #	AAT2515IWP-AA-T1

Description	Dual 600mA Fast Transient High Frequency Buck Converter

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Manufacturer	ANALOGICTECH [Advanced Analogic Technologies]

Direct Link	http://www.analogictech.com

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AAT2515

Dual 600mA Fast Transient High Frequency Buck Converter

SystemPowerTM

PRODUCT DATASHEET

2515.2007.12.1.0

1

www .analogictech.com

General Description

The AAT2515 is a dual channel synchronous buck con-

verter operating with an input voltage range of 2.7V to

5.5V, making it ideal for applications with single-cell

lithium-ion/polymer batteries.

Both regulators have independent input and enable pins.

Offered with fixed or adjustable output voltages, each

channel is designed to operate with 27μA (typical) of

quiescent current, allowing for high efficiency under light

load conditions.

The AAT2515 requires only three external components

(CIN, COUT, and LX) for each converter, minimizing cost and

real estate. Both channels are designed to deliver 600mA

of load current and operate with a switching frequency of

1.4MHz, reducing the size of external components.

The AAT2515 is available in a Pb-free, 12-pin TDFN33

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

ture range.

Features

• VIN Range: 2.7V to 5.5V

• Output Current:

▪ Channel 1: 600mA

▪ Channel 2: 600mA

• 98% Efficient Step-Down Converter

• Integrated Power Switches

• 100% Duty Cycle

• 1.4MHz Switching Frequency

• Internal Soft Start

• 150μs Typical Turn-On Time

• Over-Temperature Protection

• Current Limit Protection

• TDFN33-12 Package

• -40°C to +85°C Temperature Range

Applications

• Cellular Phones

• Digital Cameras

• Handheld Instruments

• Microprocessor / DSP Core / IO Power

• PDAs and Handheld Computers

Typical Application

AAT2515

10μF

GND

LX1

FB1

VIN1

VIN2

V

BAT

CIN

EN1

EN2

L1

4.7μH

L2

4.7μH

COUT

10μF

V

OUT1

LX2

FB2

V

OUT2

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AAT2515IWP-AA-T1 Datasheet(PDF) 1 Page - Advanced Analogic Technologies

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