component
LM431BIMX
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOIC-8. 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
markdownLM431BIMX
Texas Instruments · Voltage Reference · SOIC-8
LM431BIMX from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Cathode | bidirectional | Shunt current and output voltage terminal with maximum voltage rating of 37 V and continuous current range of -10 to 150 mA |
| 2 | Anode | power_in | Anode ground terminal, typically connected to circuit ground for current sinking |
| 3 | Anode | power_in | Anode ground terminal, typically connected to circuit ground for current sinking |
| 4 | NC | unconnected | No internally connected terminal |
| 5 | NC | unconnected | No internally connected terminal |
| 6 | Anode | power_in | Anode ground terminal, typically connected to circuit ground for current sinking |
| 7 | Anode | power_in | Anode ground terminal, typically connected to circuit ground for current sinking |
| 8 | Reference | input | Reference input terminal for programming output voltage with maximum input current of 10 mA |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM431BIMX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm431bimx-etched.step/lm431bimx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm431bimx.step/lm431bimx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
9c0bcff4967eaad2, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).