# LP3984-15B5F

**LOWPOWER** · Linear Voltage Regulators (LDO) · SOT-23-5

LP3984-15B5F from LOWPOWER, in a SOT-23-5. 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 | VIN | power_in | Power input voltage, with the datasheet's recommended supply range of 2.5V to 5.5V; the input capacitor must sit no more than 0.5 inch from this pin. |
| 2 | GND | power_in | Ground reference pin; the datasheet gives no further electrical limit for this pin. |
| 3 | EN | input | Active-high chip enable: the LDO turns on when EN is above 1.4V and shuts down when EN falls below 0.4V, with EN input voltage rated 0V to VIN+0.3V. |
| 4 | NC | unconnected | No connection, as stated in the datasheet pin description. |
| 5 | VOUT | power_out | Regulated output rated for 300mA output loading current; use a ceramic output capacitor of at least 1µF with ESR above 25mΩ, placed no more than 0.5 inch from this pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| Pins | 5 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage Accuracy | ΔVOUT | -2 |  | 2 | % | IOUT=1mA | 4 |
| Quiescent Current | IQ |  | 50 | 130 | μA | VEN≥1.2V, IOUT=0mA | 4 |
| Supply Input Voltage (recommended operating) |  | 2.5 |  | 5.5 | V |  | 3 |
| EN Input Voltage (recommended operating) |  | 0 |  |  | V | max printed as VIN+0.3V | 3 |
| Operation Junction Temperature Range |  | -40 |  | 125 | ℃ |  | 3 |
| Operation Ambient Temperature Range |  | -40 |  | 85 | ℃ |  | 3 |
| Supply Input Voltage (absolute maximum) |  |  |  | 6.5 | V |  | 3 |
| Other Pin Voltage (absolute maximum) |  | -0.3 |  |  | V | max printed as VIN+0.3V | 3 |
| Power Dissipation SOT23-5 | PD |  |  | 500 | mW | TA = 25℃ | 3 |
| Maximum Junction Temperature |  |  |  | 150 | ℃ |  | 3 |
| Storage Temperature Range |  | -65 |  | 150 | ℃ |  | 3 |
| Maximum Soldering Temperature |  |  |  | 260 | ℃ | at leads, 10 sec | 3 |
| ESD HBM |  |  |  | 2 | kV | Human Body Model | 3 |
| ESD MM |  |  |  | 200 | V | Machine Model | 3 |
| Thermal Resistance Junction-to-Ambient (SOT23-5) | θJA |  | 195 |  | ℃/W | SOT23-5 | 3 |
| Thermal Resistance Junction-to-Case (SOT23-5) | θJC |  | 60 |  | ℃/W | SOT23-5 | 3 |

## CAD (KiCad official)

- Symbol: `LP3984-15B5F`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lp3984-15b5f-etched.step` / `lp3984-15b5f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3984-15b5f.step` / `lp3984-15b5f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LOWPOWER datasheet](docs/lp3984-15b5f-datasheet.pdf) (6 pp, sha256 `a1514bb510946b2a`, retrieved 2026-11-05, 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/lp3984-15b5f-datasheet.pdf)