# LP2951-30DRGR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · WSON-8-EP(3x3)

LP2951-30DRGR 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 | power_out | Regulated output voltage; requires minimum 1µF capacitor to GND for stability, nominal 1µF-100µF ceramic recommended. |
| 2 | SENSE | input | Output voltage sense input; connects to OUTPUT for fixed output when FEEDBACK connects to VTAP, must remain open for adjustable output. |
| 3 | SHUTDOWN | input | High-level-active shutdown control input; enables device below 0.7V, disables above 2V. |
| 4 | GND | power_in | Ground, reference potential. |
| 5 | ERROR | output | Open-drain active-low fault output; asserts low when VOUT drops 6% below nominal value. |
| 6 | VTAP | input | Voltage tap for fixed output option; connects to FEEDBACK for fixed output, must remain open for adjustable output. |
| 7 | FEEDBACK | input | Feedback input for output voltage regulation; connects to VTAP for fixed output (with OUTPUT to SENSE) or to external resistor divider for adjustable output. |
| 8 | INPUT | power_in | Input power supply pin VIN 2V-30V; minimum 1µF capacitor to GND recommended for 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: `LP2951-30DRGR`
- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`
- 3D model: WSON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `lp2951-30drgr-etched.step` / `lp2951-30drgr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2951-30drgr.step` / `lp2951-30drgr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lp2950) (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`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).

[Datasheet PDF](docs/lp2951-30drgr-datasheet.pdf)