LMV321AIDBVR 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	OUT	output	Op-amp output. Rail-to-rail output swing; drives up to 500 pF capacitive load; short-circuit protected to ground (one amplifier per package).
2	V-	power_in	Negative (lowest) supply, or ground for single-supply operation. Total supply span (V+) - (V-) is 2.5 V to 5.5 V (6 V absolute maximum).
3	+IN	input	Noninverting input. Common-mode range extends from (V-) - 0.5 V to (V+) + 0.5 V. Input bias current typically 10 pA; diode-clamped to supply rails (limit external current to <10 mA).
4	-IN	input	Inverting input. Common-mode range extends from (V-) - 0.5 V to (V+) + 0.5 V. Input bias current typically 10 pA; diode-clamped to supply rails (limit external current to <10 mA).
5	V+	power_in	Positive (highest) supply. Total supply span (V+) - (V-) is 2.5 V to 5.5 V (6 V absolute maximum). Typical quiescent current 70 μA per channel.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

LMV321AIDBVR
LMV321AIDBVT
LMV321AIDBVRIDCKR
LMV321AIDBVRIDCKT
LMV321AIDBVRAUIDBVR

CAD (KiCad official)

Symbol: LMV321AIDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lmv321aidbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`lmv321aidbvr-etched.step`	1.8 MB	You want the part with `LMV321AIDBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 473 faces against 102 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 (48 pp, sha256 d259d3712869641e, 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