# BD50FC0FP-E2

**ROHM** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

BD50FC0FP-E2 from ROHM, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Vcc | power_in | Power supply input. Operating input voltage 4.0V to 26.5V (for Vo<3.0V) or Vo+1.0V to 26.5V (for Vo>=3.0V); withstand rating 35V. Decouple with an input capacitor Cin close to the pin. |
| 2 | N.C. | unconnected | No internal connection. Leave OPEN (per datasheet Note 1, this pin is not connected inside the IC). |
| 3 | Vo | power_out | Regulated 5.0V output pin, 1A maximum output current, ±1% accuracy at Ta=25°C. Requires a ceramic output capacitor Cout for stability. |
| FIN | GND | power_in | Ground / thermal tab (FIN). Connects the package heat-slug to the PCB ground plane; also serves as the electrical GND reference for the regulator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM |
| Package | TO-252 |
| Category | PMIC |
| Pins | 4 |

## Ordering variants

Same part, different packaging or reel option.

- `BD50FC0FP-E2`
- `BD50FC0FP-E2WFP-E2`
- `BD50FC0FP-E2WEFJ-E2`

## CAD (KiCad official)

- Symbol: `BD50FC0FP-E2`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `bd50fc0fp-e2-etched.step` / `bd50fc0fp-e2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bd50fc0fp-e2.step` / `bd50fc0fp-e2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM datasheet](docs/bd50fc0fp-e2-datasheet.pdf) (41 pp, sha256 `16de41a5714aae28`, retrieved 2026-08-17, tier: manufacturer)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bd50fc0fp-e2-datasheet.pdf)