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.
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