One switcher, four topologies — what the TPS61170DRVT can do
The Texas Instruments TPS61170DRVT is a current-mode boost converter that also works in buck-boost, flyback, and SEPIC configurations. Input range runs from 3 V up to 18 V, output goes to 38 V adjustable via a resistor divider.
960 mA switch current — what you actually get at the output
The 960 mA rating is the internal switch current limit, not the output current. For a SEPIC or flyback design, the switch current handles both the input and the reflected output current, so derate further. Plan your inductor saturation current around the 960 mA peak plus ripple.
6-WSON: small footprint, thermal pad required
Without that, the junction temperature climbs fast above 85°C ambient. The pad is also the ground return for the switch, so the layout needs a solid via-stitched ground pour underneath. Fine for outdoor telecom enclosures, motor drives, and battery-powered gear.
No end-of-life notice, no last-time-buy deadline.