component
LM397MFX
Public Made by Adomby adom
Texas Instruments Comparators, SOT-23-5. Datasheet-verified pinout, 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
markdownLM397MFX
Texas Instruments · Comparators · SOT-23-5
LM397MFX 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 | VIN- | power_in | Inverting input; input common-mode voltage range 0 to VS - 1.5 V. |
| 2 | GND | power_in | Ground; negative power supply return. |
| 3 | VIN+ | power_in | Noninverting input; input common-mode voltage range 0 to VS - 1.5 V. |
| 4 | OUTPUT | output | Open-collector output stage; maximum output sink current 10 mA with external pull-up resistor. |
| 5 | VS | power_in | Positive power supply voltage; range 5 V to 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LM397MFX - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lm397mfx-etched.step/lm397mfx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm397mfx.step/lm397mfx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
5b18748a79fe7705, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).