LMV331IDCKR from Texas Instruments, in a SC-70-5. 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+	input	Non-inverting comparator input. Common-mode input voltage range extends from -0.1 V to (VCC+ - 1.5 V); input bias current 15 nA typ (250 nA max) at VCC+ = 2.7 V.
2	GND	power_in	Ground / negative supply reference (0 V). Single-supply operation with VCC+ referenced to this pin.
3	IN-	input	Inverting comparator input. Differential input voltage rating ±5.5 V; common-mode input voltage range includes ground.
4	OUT	output	Open-collector comparator output. Requires an external pull-up resistor to VCC+ (typ RL = 5.1 kΩ). Sinks up to 23 mA typ at VCC+ = 2.7 V; saturation voltage 200 mV typ at IO ≤ 1.5 mA.
5	VCC+	power_in	Positive supply. Single-supply operating range 2.7 V to 5.5 V; absolute maximum 5.5 V. Typical supply current 40 µA at VCC+ = 2.7 V, 60 µA at VCC+ = 5 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

LMV331IDCKR
LMV331IDCKT
LMV331IDCKRIDBVR
LMV331IDCKRIDBVT

CAD (KiCad official)

Symbol: LMV331IDCKR
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lmv331idckr.step`	87 KB	You want the bare part, or you mark your own boards.
`lmv331idckr-etched.step`	1.9 MB	You want the part with `LMV331IDCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 475 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 (30 pp, sha256 f16c28a91f97444c, 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