REF3225AIDBVR from Texas Instruments, in a SOT-23-6. 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	GND_F	power_in	Ground force pin. Analog output; the ground connection of the device that carries the ground return current. Used in Kelvin (force/sense) configuration with GND_S to null out IR drops in ground routing.
2	GND_S	input	Ground sense pin. Analog input; connects at the load to sense the load-side ground potential, enabling force/sense (Kelvin) load regulation compensation.
3	ENABLE	input	Digital input that enables (V_H ≥ 1.5V, up to V_IN) or disables (V_L ≤ 0.7V) the reference. In shutdown, supply current drops to ~0.1µA (1µA max). May be tied to IN for input rise times ≤ 2ms.
4	IN	power_in	Positive supply voltage input. Analog input; operating range V_OUT + 0.05V (dropout) to 5.5V. Absolute maximum 7.5V. Quiescent current typ 100µA.
5	OUT_S	input	Output sense pin. Analog input; sense connection at the load used with OUT_F in a Kelvin/force-sense configuration to null out IR drops in the output trace and improve load regulation.
6	OUT_F	output	Output force pin. Analog output that sources the 2.5V reference voltage (REF3225). Delivers up to ±10mA and is stable with any capacitive load.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

REF3225AIDBVR
REF3225AIDBVT

CAD (KiCad official)

Symbol: REF3225AIDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ref3225aidbvr.step`	97 KB	You want the bare part, or you mark your own boards.
`ref3225aidbvr-etched.step`	2.3 MB	You want the part with `REF3225AIDBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 582 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Texas Instruments datasheet (19 pp, sha256 691719783e90148d, 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