TPS54311-Q1, TPS54312-Q1

TPS54313-Q1, TPS54314-Q1

TPS54315-Q1, TPS54316-Q1

SGLS242G − OCTOBER 2004 − REVISED SEPTEMBER 2008

3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM

SWITCHER WITH INTEGRATED FETs (SWIFT

)

(6,3 mm x 6,4 mm)

Typical Size

FEATURES

at 3-A Continuous Output Source or Sink

Current

Output Voltage Devices With 1% Initial

Accuracy

550 kHz, or Adjustable 280 kHz to 700 kHz

Thermal Shutdown

Total Cost

APPLICATIONS

Power Distributed at 5 V or 3.3 V

Performance DSPs, FPGAs, ASICs, and

Microprocessors

Communications Infrastructure

DESCRIPTION

As members of the SWIFT family of dc/dc regulators, the

TPS54311,

TPS54312,

TPS54313,

TPS54314,

TPS54315, and TPS54316 low-input-voltage high-output

current synchronous-buck PWM converters integrate all

required active components. Included on the substrate

with the listed features are a true, high performance,

voltage error amplifier that provides high performance

under transient conditions; an undervoltage-lockout circuit

to prevent start-up until the input voltage reaches 3 V; an

internally and externally set slow-start circuit to limit

in-rush currents; and a power good output useful for

processor/logic

reset,

fault

signaling,

and

supply

sequencing.

The TPS54311, TPS54312, TPS54313, TPS54314,

TPS54315, and TPS54316 devices are available in a

thermally enhanced 20-pin TSSOP (PWP) PowerPAD



package, which eliminates bulky heatsinks. Texas

Instruments provides evaluation modules and the SWIFT

designer software tool to aid in quickly achieving

high-performance

power

supply

designs

to

meet

aggressive equipment development cycles.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during

storage or handling to prevent electrostatic damage to the MOS gates.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

PowerPAD and SWIFT are trademarks of Texas Instruments.

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.

www.ti.com

Copyright

 2008, Texas Instruments Incorporated

Obsolete Devices:

TPS54314-Q1 and TPS54315-Q1