TPS73225DBVR from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	IN	power_in	Input supply. Recommended operating range 1.7 V to 5.5 V (absolute max 6 V). Provides power to the NMOS pass element and internal circuitry.
2	GND	power_in	Device ground reference.
3	EN	input	Enable input. Driving EN high turns on the regulator; driving it low puts the device into shutdown mode (IQ < 1 µA). May be tied to IN if unused. Absolute max 6 V.
4	NR/FB	passive	Noise-reduction pin for this fixed-voltage (2.5 V) version. Connecting an external capacitor (typically 0.1 µF) from this pin to GND bypasses the internal bandgap noise, reducing output noise to ~30 µVRMS (10 kHz to 100 kHz). Absolute max 6 V.
5	OUT	power_out	Regulated 2.5-V output, up to 250 mA. Stable with any value or type of output capacitor, including no capacitor. Absolute max 5.5 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

TPS73225DBVR
TPS73225DBVRDBVT
TPS73225DBVRDCQR
TPS73225DBVRDCQT
TPS73225DBVRDRBR
TPS73225DBVRDRBT

CAD (KiCad official)

Symbol: TPS73225DBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (42 pp, sha256 1e4d7505b7ace0bb, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF