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 HTSSOP (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.
● 60-mΩ MOSFET Switches for High Efficiency at
●3-A Continuous Output Source or Sink Current
● Adjustable Output Voltage Down to 0.9 V 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
