component
LM2931AMX-5.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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
markdownLM2931AMX-5.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
LM2931AMX-5.0 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 | OUT | power_out | Regulated 5.0 V output; supplies up to 100 mA with ±3.8% tolerance (A-grade); dropout voltage 0.6 V max at 100 mA, quiescent current 1.0 mA max. |
| 2 | GND | power_in | Ground return; one of four ground pins connected to circuit common. |
| 3 | GND | power_in | Ground return; one of four ground pins connected to circuit common. |
| 4 | NC | unconnected | No internal connection in SOIC-8 fixed-output variant; leave floating (NC isolation requirement stated by datasheet applies only to DSBGA package). |
| 5 | NC | unconnected | No internal connection in SOIC-8 fixed-output variant; leave floating (NC isolation requirement stated by datasheet applies only to DSBGA package). |
| 6 | GND | power_in | Ground return; one of four ground pins connected to circuit common. |
| 7 | GND | power_in | Ground return; one of four ground pins connected to circuit common. |
| 8 | IN | power_in | Unregulated DC input; operating range 6 V to 26 V, withstands 60 V load-dump transients (1 ms) and −50 V reverse transients (1 ms). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2931AMX-5.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm2931amx-5-0-etched.step/lm2931amx-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2931amx-5-0.step/lm2931amx-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
45c959192188b8f1, retrieved 2026-09-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(text+vision), consensusclaude-opus-4-7(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).