component
LP2951CMX
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
markdownLP2951CMX
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
LP2951CMX 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 | output | Regulated output voltage programmable or fixed from 1.24V to 29V with ±0.5% typical accuracy and ensured 100-mA maximum output current capability. |
| 2 | SENSE | input | Output voltage sense input connected to OUT in fixed-voltage configuration to detect actual output voltage for accurate regulation. |
| 3 | SHUTDOWN | input | Active-high logic shutdown input; voltage ≥2V disables regulator reducing quiescent current to 3µA typical, voltage ≤0.6V enables regulator operation. |
| 4 | GND | power_in | Ground reference connection and substrate connection point; for SOIC package, connect exposed thermal pad to ground. |
| 5 | ERROR | output | Open-collector error comparator output sinking up to 400µA that goes low when regulated output voltage falls more than approximately 5% below nominal programmed value. |
| 6 | VTAP | output | Internal resistor divider tap providing nominal 1.235-V reference voltage (1.22-1.25V at 25°C, 1.2-1.26V over temperature) for feedback circuit biasing. |
| 7 | FEEDBACK | input | Feedback input voltage for error amplifier with maximum ±40-nA bias current; tie to VTAP for fixed voltage or to external resistor divider for 1.24-29V programmable output. |
| 8 | IN | power_in | Input supply voltage connection accepting 2.3V to 30V range with minimum 1-µF input capacitor recommended for loop stability if wire length exceeds 10 inches. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LP2951CMX - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lp2951cmx-etched.step/lp2951cmx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2951cmx.step/lp2951cmx.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 2026-09-22, 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).