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Texas Instruments TPS62173DSGT — Power Management (PMIC / Gate Driver)

TPS62173DSGT Step-Down Regulator, 5 V Fixed Output, 500 mA

MPNTPS62173DSGT
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Texas Instruments DCS-Control™ series, TPS62173DSGT, Step-Down Buck Regulator, Fixed 5 V Output, 500 mA, 2.25 MHz, 8-WSON (2x2) Surface Mount, -40°C to 85°C.

$1.6800Ref. price · indicative, final on quote
Texas Instruments TPS62173DSGT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS62173DSGT specifications
ParameterValue
SeriesDCS-Control™
Output typeFixed
MountingSurface Mount
Voltage - input17V
Voltage - output (Min (Fixed))5V
Output current500mA
Frequency - switching2.25MHz
I/O channels1
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case8-WFDFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

5 V fixed output — the BOM-fit anchor

The TPS62173DSGT is a fixed 5 V output step-down (buck) regulator from TI's DCS-Control™ family, delivering 500 mA continuous from a 3 V to 17 V input rail. That fixed 5 V output is the single non-negotiable spec: if your rail is 5 V, this is the exact ordering code.

2.25 MHz switching — small passives, tight layout

The 2.25 MHz switching frequency lets you use a small inductor and low-value ceramic output capacitor — typically 1 µH and 10 µF — keeping the total solution footprint under 15 mm².

No last-time-buy notice, no end-of-life window.

Frequently asked questions

What is the difference between TPS62173DSGT and TPS62172DSGT?

The TPS62172DSGT is the adjustable-output version of the same buck regulator, while the TPS62173DSGT is fixed at 5 V output. Both share the same 3 V to 17 V input range, 500 mA output, 2.25 MHz switching, and 8-WSON package. The fixed output saves one feedback resistor divider on the board.