component
LP2951ACMX-3.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. 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
markdownLP2951ACMX-3.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
LP2951ACMX-3.0 from Texas Instruments, in a SOIC-8. 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 | OUT | power_out | Regulated 3.0 V ±1.5% output voltage with 100 mA maximum sourcing capability; typical 50 mV dropout at light load and 380 mV dropout at 100 mA. |
| 2 | SENSE | input | Output voltage sense input for remote load sensing; tie to OUT pin for fixed voltage fixed regulator operation or connect to remote load for compensation. |
| 3 | SHUTDOWN | input | Logic-controlled shutdown input; pull low (≤0.7 V) to enable regulator or high (≥2 V) to disable and reduce quiescent current to 3-10 µA. |
| 4 | GND | power_in | Ground reference and power return for all internal circuits; connect DAP (exposed pad on WSON) to this ground pin. |
| 5 | ERROR | tri_state | Open-collector error flag output; pulls low when regulated output drops below 95% nominal (about 2.85 V for 3 V version) due to dropout, overcurrent, or thermal limiting. |
| 6 | VTAP | output | Internal reference divider output at nominal 1.235 V; connect to FEEDBACK pin for fixed voltage or use in external resistor network for programmable output voltage. |
| 7 | FEEDBACK | input | Voltage feedback input for programmable or fixed output mode with typical bias current of -20 nA; tie to VTAP for fixed 3 V output or set with external resistors for 1.24 V to 29 V. |
| 8 | IN | power_in | Input supply voltage ranging from 2.3 V to 30 V; requires minimum 1 µF input capacitor if source is >10 inches distant or battery powered. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LP2951ACMX-3.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lp2951acmx-3-0-etched.step/lp2951acmx-3-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2951acmx-3-0.step/lp2951acmx-3-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (62 pp, sha256
b9e1f8851a20b9c9, 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).