component

LMV321IDBVR

Public Made by Adom

by adom

UMW Operational Amplifier, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lmv321idbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
lmv321idbvr-etched.fit.json lmv321idbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lmv321idbvr-etched.glb lmv321idbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lmv321idbvr-etched.step lmv321idbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lmv321idbvr.glb Publish 0.1.0 · Ray 1mo ago
lmv321idbvr.kicad_mod Publish 0.1.0 · Ray 1mo ago
lmv321idbvr.kicad_sym Publish 0.1.0 · Ray 1mo ago
lmv321idbvr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 5 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
lmv321idbvr.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 7d ago
README.md lmv321idbvr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

LMV321IDBVR

UMW · Operational Amplifier · SOT-23-5

LMV321IDBVR from UMW, 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+ input Non-inverting analog input. Rail-to-rail common-mode range from (-VS)-0.1V to (+VS)+0.1V (VCM -0.1V to 5.6V at Vs=5.5V). Input bias current 10 nA typ.
2 VSS power_in Negative supply / ground. Tie to system GND for single-supply operation. Total supply (VDD-VSS) 2.1V to 5.5V (absolute max 7.5V).
3 IN- input Inverting analog input. Same common-mode and bias characteristics as IN+. Used with feedback network for closed-loop gain configuration.
4 OUT output Rail-to-rail amplifier output. Output current 20 mA min / 25 mA typ, slew rate 0.52 V/µs, GBW 1 MHz.
5 VDD power_in Positive supply rail. Operating range 2.1V to 5.5V (absolute max 7.5V). Decouple with 100 nF close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LMV321IDBVR

CAD (KiCad official)

  • Symbol: LMV321IDBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lmv321idbvr-etched.step / lmv321idbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmv321idbvr.step / lmv321idbvr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lmv321idbvr.step 85 KB You want the bare part, or you mark your own boards.
lmv321idbvr-etched.step 1.7 MB You want the part with LMV321IDBVR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 447 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: UMW datasheet (15 pp, sha256 92ba53cd7280c726, retrieved 2026-08-17, tier: lcsc)
  • 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