1 Features

1• 30-mΩ, 12-A Peak MOSFET Switches for High

Efficiency at 6-A Continuous Output Source and

Sink

• 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed

Output Voltage Devices With 1.0% Initial Accuracy

• Internally Compensated for Easy Use and Minimal

Component Count

• Fast Transient Response

• Wide PWM Frequency − Fixed 350 kHz, 550 kHz

or Adjustable 280 kHz to 700 kHz

• Load Protected by Peak Current Limit and

Thermal Shutdown

• Integrated Solution Reduces Board Area and

Total Cost

2 Applications

• Low-Voltage, High-Density Systems With Power

Distributed at 5 V or 3.3 V

• Point of Load Regulation for High Performance

DSPs, FPGAs, ASICs and Microprocessors

• Broadband, Networking and Optical

Communications Infrastructure

• Portable Computing/Notebook PCs

3 Description

The SWIFT™ family of dc/dc regulators, the

TPS54611, TPS54612, TPS54613, TPS54614,

TPS54615 and TPS54616 low-input voltage high- output current synchronous-buck PWM converters

integrate all required active components. Included on

the substrate are true, high-performance, voltage

error amplifiers that provide high performance under

transient conditions; an under-voltage-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 powergood output useful

for processor/logic reset, fault signaling, and supply

sequencing.

The TPS5461x devices are available in a thermally

enhanced 28-pin TSSOP (PWP) PowerPAD™

package, which eliminates bulky heatsinks. TI

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.