component
LP2951CMX-3.0
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
markdownLP2951CMX-3.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
LP2951CMX-3.0 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 | output | Regulated output voltage with 100 mA ensured maximum output current and internal foldback current limiting to 160 mA. |
| 2 | SENSE | input | Output voltage sense input, typically tied to OUT pin for fixed voltage configuration or to feedback network for programmable output. |
| 3 | SHUTDOWN | input | Logic shutdown input; regulator disabled when voltage ≥1.3 V, enabled when voltage ≤0.7 V with typical 50 µA input current at 2.4 V. |
| 4 | GND | power_in | Ground reference connection point for all bias currents and load returns. |
| 5 | ERROR | output | Open-collector error comparator output, goes low when output drops below nominal by approximately 5%, sinks 400 µA maximum with 250 mV output low voltage. |
| 6 | VTAP | output | Internal resistor divider tap with nominal 1.235 V reference voltage and 20 ppm/°C typical temperature coefficient. |
| 7 | FEEDBACK | input | Voltage feedback input for regulation with 20 nA typical bias current, used with external resistor network for programmable output 1.24 V to 29 V. |
| 8 | IN | power_in | Input supply voltage operating from 2.3 V to 30 V with 75 µA typical quiescent current and 40 mV to 380 mV dropout voltage depending on load current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LP2951CMX-3.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lp2951cmx-3-0-etched.step/lp2951cmx-3-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2951cmx-3-0.step/lp2951cmx-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 2026-09-27, 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).