TPS65232 Datasheet, PDF (1/31 Pages) Texas Instruments – TRIPLE BUCK POWER MANAGEMENT IC

Not Recommended for New Designs
TPS65232
www.ti.com
TRIPLE BUCK POWER MANAGEMENT IC
Check for Samples: TPS65232
SLVSA42 – FEBRUARY 2010
FEATURES
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• Wide Input Supply Voltage Range
(10.8 V - 22 V)
• One Adjustable PWM Buck Controller
– 10.8-V - 22-V Input Voltage Range
– 3.3-V - 6.1-V Output Voltage Range
– 500-kHz Switching Frequency
– Type III Compensation
– Programmable Current Limit
• Two Adjustable Step-Down Converter With
Integrated Switching FETs:
– 4.75-V - 5.5-V Input
– 0.9-V-3.3-V Output Voltage Range
– 3-A Output Current
– 1-MHz Switching Frequency
– Type III Compensation
• Pull-Up Current Sources on Buck Enable Pins
for Accurate Start-Up Timing Control with
Preset Default
• Over Current Protection on All Rails
• Thermal Shutdown to Protect Device During
Excessive Power Dissipation
• Thermally Enhanced Package for Efficient
Heat Management (48-pin HTSSOP or
6-mm x 6-mm 40-Pin QFN)
APPLICATIONS
• xDSL and Cable Modems
• Wireless Access Points
• STB, DTV, DVD and Home Gateway
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated