TPS65232

www.ti.com

SLVSA42 – FEBRUARY 2010

TRIPLE BUCK POWER MANAGEMENT IC

Check for Samples: TPS65232

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FEATURES

•

Pull-Up Current Sources on Buck Enable Pins

for Accurate Start-Up Timing Control with

•

Wide Input Supply Voltage Range

Preset Default

(10.8 V - 22 V)

•

Over Current Protection on All Rails

•

One Adjustable PWM Buck Controller

•

Thermal Shutdown to Protect Device During

–

10.8-V - 22-V Input Voltage Range

Excessive Power Dissipation

–

3.3-V - 6.1-V Output Voltage Range

•

Thermally Enhanced Package for Efficient

–

500-kHz Switching Frequency

Heat Management (48-pin HTSSOP or

–

Type III Compensation

6-mm x 6-mm 40-Pin QFN)

–

Programmable Current Limit

•

Two Adjustable Step-Down Converter With

APPLICATIONS

Integrated Switching FETs:

•

xDSL and Cable Modems

–

4.75-V - 5.5-V Input

•

Wireless Access Points

•

STB, DTV, DVD and Home Gateway

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0.9-V-3.3-V Output Voltage Range

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3-A Output Current

–

1-MHz Switching Frequency

–

Type III Compensation

DESCRIPTION/ORDERING INFORMATION

The TPS65232 provides one PWM buck controller, two adjustable, synchronous buck regulators. The SMPS

have integrated switching FETs for optimized power efficiency and reduced external component count. All power

blocks have thermal and over current/short circuit protection. The TPS65232 startup timing can be controlled

through buck enable pins. The buck controller and buck converters have internal pole/zero pairs to help

stabilizing the system with minimum external components.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Not Recommended for New Designs