REF3012AIDBZR from Texas Instruments, in a SOT-23. 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	Positive supply input. Operating range 1.8V to 5.5V (VREF + 1mV dropout minimum). Absolute max 7.0V. Quiescent current 50µA max.
2	OUT	output	1.25V precision voltage reference output. Initial accuracy 0.2%, supplies up to 25mA load current, short-circuit protected (typ 45mA). No load capacitor required.
3	GND	power_in	Ground / negative supply return.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23
Category	PMIC
Pins	3

Ordering variants

Same part, different packaging or reel option.

REF3012AIDBZR
REF3012AIDBZT

CAD (KiCad official)

Symbol: REF3012AIDBZR
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ref3012aidbzr.step`	59 KB	You want the bare part, or you mark your own boards.
`ref3012aidbzr-etched.step`	2.1 MB	You want the part with `REF3012AIDBZR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 532 faces against 69 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 (17 pp, sha256 ffa7c37e7b71c282, 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