component
LMV431BIMFX
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLMV431BIMFX
Texas Instruments · Voltage Reference · SOT-23
LMV431BIMFX 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 | REF | input | Reference/adjust input; negative feedback node that sets the cathode voltage via an internal 1.24-V band-gap reference (shorting REF to Cathode gives a 1.24-V cathode voltage); reference input current is typically 0.15 µA. |
| 2 | CATHODE | passive | Cathode terminal of the shunt regulator; regulates to VREF (1.24 V) up to 30 V, sinks 0.1 mA to 15 mA (minimum 55 µA typical for regulation), with 0.25-Ω typical dynamic output impedance. |
| 3 | ANODE | power_in | Anode terminal (device ground/return); continuous cathode current is rated −30 mA to 30 mA referenced to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LMV431BIMFX - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lmv431bimfx-etched.step/lmv431bimfx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmv431bimfx.step/lmv431bimfx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
ba81200a24b0548f, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).