FEATURES

Qualified for Automotive Applications

Integrated MOSFET Switches for High

Efficiency at 1.5-A Continuous Output Source

or Sink Current

0.9-V to 3.3-V Adjustable Output Voltage With

1% Accuracy

Externally Compensated for Design Flexibility

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

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

DESCRIPTION

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

TPS54110 low-input-voltage high-output-current

synchronous-buck PWM converter integrates 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 TPS54110 device is available in a thermally enhanced

20-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.