As members of the SWIFT family of dc/dc regulators, the TPS54310 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 TPS54310 device is 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.

• Qualified for Automotive Applications
• 60-m MOSFET Switches for High Efficiency at 3-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
  • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
  • Automotive Systems
    • Navigation Units
    • Entertainment Modules
    • Satellite Radio
  • Industrial High-Density Systems With Power Distributed at 5 V or 3.3 V

PowerPAD and SWIFT are trademarks of Texas Instruments.