TPS54310PWPR

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. 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.

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

Key features

• ±0 mΩ 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