# LP2950CZ-3.3G

**onsemi** · Linear Voltage Regulators (LDO) · TO-92

LP2950CZ-3.3G from onsemi, in a TO-92. 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 3.3 V output, rated for more than 100 mA, with a 1.0 µF output capacitor required for stability. |
| 2 | Ground | power_in | Ground reference pin for the regulator. |
| 3 | Input | power_in | Unregulated supply input (battery or unregulated DC) to the regulator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-92 |
| Category | Power Management ICs |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LP2950CZ-3.3G`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `lp2950cz-3-3g-etched.step` / `lp2950cz-3-3g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2950cz-3-3g.step` / `lp2950cz-3-3g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](docs/lp2950cz-3-3g-datasheet.pdf) (22 pp, sha256 `a648f664554c243b`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/lp2950cz-3-3g-datasheet.pdf)