AAT2601 Analogic Corporation, AAT2601 Datasheet

AAT2601

Manufacturer Part Number

AAT2601

Description

Manufacturer

Analogic Corporation

Datasheet

1.AAT2601.pdf (38 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AAT2601BIIH-T1

Manufacturer:

KIONIX

Quantity:

34 000

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Download datasheet (2Mb)

General Description

The AAT2601 is a member of AnalogicTech’s Total Power

Management IC

a single-cell Lithium Ion/Polymer battery charger, a fully

integrated step-down converter and 5 low dropout (LDO)

regulators. The device also includes 2 load switches for

dynamic power path/sleep mode operation, making it

ideal for small handheld portable GSM or CDMA mobile

telephones.

The battery charger is a complete thermally regulated

constant current/constant voltage linear charger. It

includes an integrated pass device, reverse blocking pro-

tection, high accuracy current and voltage regulation,

charge status, and charge termination. The charging

current, charge termination current, and recharge volt-

age are programmable with an external resistor and/or

by a standard I

The step-down DC/DC converter is integrated with internal

compensation and operates at a switching frequency of

1.5MHz, thus minimizing the size of external components

while keeping switching losses low and efficiency greater

than 95%.

using the I

The five LDOs offer 60dB power supply rejection ratio

(PSRR) and low noise operation making them suitable for

powering noise-sensitive loads.

All six voltage regulators operate with low quiescent cur-

rent. The total no load current when the step-down con-

verter and 2 LDOs are enabled is only 170μA.

The AAT2601 is available in a thermally enhanced low

profile 5x5x0.8mm 36-pin TQFN package.

2601.2008.01.1.0

C interface.

All LDO output voltages are programmable

C interface.

(TPMIC

) product family. It contains

w w w . a n a l o g i c t e c h . c o m

Total Power Solution for Portable Applications

Features

• Voltage Regulator V

• Complete Power Integration

• Low Standby Current

• One Step-Down Buck Converter (Core)

• Five LDOs Programmable with I

• One Battery Charger

• Adapter OK (ADPP) and Reset (RESET) Timer Outputs

• Separate Enable Pins for Supply Outputs

• Over-Current Protection

• Over-Temperature Protection

• 5x5mm TQFN55-36 Package

Applications

• Digital Cameras

• GSM or CDMA Cellular Phones

• Handheld Instruments

• PDAs and Handheld Computers

• Portable Media Players

▪

Integrated Load Switches to Power Converters from

AC Adapter or Battery Automatically

170μA (typ) w/ Buck (Core), LDO1 (PowerDigital),

and LDO2 (PowerAnalog) Active, No Load

1.8V, 300mA Output

1.5MHz Switching Frequency

Fast Turn-On Time (120μs typ)

LDO1: 3.0V, 300mA (PowerDigital)

LDO2: 3.0V, 150mA (PowerAnalog or PLL)

LDO3: 3.0V, 150mA (TCXO)

LDO4: 3.0V, 150mA (TX)

LDO5: 3.0V, 150mA (RX)

PSRR: 60dB@10kHz

Noise: 50μVrms for LDO3, LDO4, and LDO5

Digitized Thermal Regulation

Charge Current Programming up to 1.4A

Charge Current Termination Programming

Automatic Trickle Charge for Battery Preconditioning

(2.8V Cutoff)

PRODUCT DATASHEET

Range: 4.5V to 6V

AAT2601178

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