As a member of the SWIFT™ family of DC-DC regulators,
the TPS54917 low-input voltage high-output current synchronous buck PWM converter offers the same
features as the TPS54910 in a smaller package and higher switching frequency, which allows for a
smaller total solution. 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 undervoltage lockout (UVLO)
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 or logic
reset, fault signaling, and supply sequencing.
The TPS54917 is available in a thermally enhanced 34-pin VQFN (RUV)
PowerPAD™ package, which eliminates bulky heat sinks. TI provides
modules and the SwitcherPro design software tool to aid in achieving
high-performance power supply
designs to meet aggressive equipment development cycles.
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