# LP3986-25B3F

**LOWPOWER** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

LP3986-25B3F from LOWPOWER, in a SOT-23. 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 | GND | power_in | Ground pin for the regulator. |
| 2 | OUT | power_out | Regulated output pin; the datasheet gives no separate limits for this pin. |
| 3 | VIN | power_in | Power input pin; the recommended supply input voltage range is 2.5V to 6V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Input Voltage |  | 2.5 |  | 6 | V |  | 3 |
| Operation Junction Temperature Range |  | -40 |  | 125 | °C |  | 3 |
| Operation Ambient Temperature Range |  | -40 |  | 85 | °C |  | 3 |
| Supply Input Voltage |  |  |  | 7 | V |  | 3 |
| Power Dissipation | PD |  |  | 350 | mW | TA = 25°C, SOT-23-3 | 3 |
| ESD Susceptibility HBM (Human Body Model) |  |  |  | 2 | kV |  | 3 |
| ESD Susceptibility MM (Machine Model) |  |  |  | 200 | V |  | 3 |
| Lead Temperature (Soldering) |  |  |  | 260 | °C | Soldering, 10 sec | 3 |
| Storage Temperature Range |  | -65 |  | 165 | °C |  | 3 |
| Package Thermal Resistance, Junction-to-Ambient | θJA |  |  | 350 | °C/W | SOT-23-3 | 3 |

## CAD (KiCad official)

- Symbol: `LP3986-25B3F`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lp3986-25b3f-etched.step` / `lp3986-25b3f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3986-25b3f.step` / `lp3986-25b3f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LOWPOWER datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903991896260608) (6 pp, sha256 `c9442e927dd65fa5`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/lp3986-25b3f-datasheet.pdf)