FEATURES

15-mΩ MOSFET Switches for High Efficiency

at 9-A Continuous Output

0.9-V to 2.5-V Adjustable Output Voltage

Externally Compensated With 1% Accuracy

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 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 a member of the SWIFT™ family of dc/dc regulators,

the TPS54910 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 enables maximum

performance under transient conditions and flexibility in

choosing the output filter L and C components; 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 power good output useful for processor/logic

reset, fault signaling, and supply sequencing.

The TPS54910 is 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.