component
LP2951-50DRGR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, WSON-8-EP(3x3). 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
markdownLP2951-50DRGR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · WSON-8-EP(3x3)
LP2951-50DRGR from Texas Instruments, in a WSON-8-EP(3x3). 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 | OUTPUT | output | Regulated output voltage; requires capacitor (1µF to 100µF) connection between OUTPUT and GND for stability; place output capacitor as close as possible to device output. |
| 2 | SENSE | input | Output voltage sense input; connect to OUTPUT for fixed output option with FEEDBACK to VTAP, or leave floating for adjustable output mode. |
| 3 | SHUTDOWN | input | Active-high shutdown input; VIL ≤ 0.7V enables regulator output, VIH ≥ 2V disables regulator output. |
| 4 | GND | power_in | Ground reference. |
| 5 | ERROR | output | Low-level active open-drain fault indicator output; asserts LOW when VOUT drops nominally 6% below target voltage. |
| 6 | VTAP | input | Internal reference voltage tap; connect to FEEDBACK for fixed output mode, or leave floating for adjustable output mode. |
| 7 | FEEDBACK | input | Feedback input that determines output voltage; connect to external resistor divider for adjustable output or to VTAP for fixed output mode. |
| 8 | INPUT | power_in | Input power supply pin accepting 2V to 30V; use capacitor ≥1µF between this pin and ground for input filtering and stability. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LP2951-50DRGR - Footprint:
Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm - 3D model: WSON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
lp2951-50drgr-etched.step/lp2951-50drgr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2951-50drgr.step/lp2951-50drgr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (48 pp, sha256
d245e8d4bbb0ca93, retrieved 2026-10-03, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).