# MD7218E30PC1

**Shanghai Mingda Microelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-5L

MD7218E30PC1 from Shanghai Mingda Microelectronics, in a SOT-89-5L. 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 | NC | unconnected | No connection pin. |
| 2 | GND | power_in | Ground pin; the top-side tab is also labelled 2 in the package drawing. |
| 3 | EN | input | Enable input, active high: VENH is 1.5V min to 18V and VENL is 0V to 0.5V. |
| 4 | VIN | power_in | Input supply, 2.2V to 18V operating (absolute maximum -0.3 to 20V). |
| 5 | VOUT | power_out | Regulated 3.0V output (MD7218E30) delivering up to 1A; must not exceed VIN+0.3V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-89-5L |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `MD7218E30PC1`
- Footprint: `Package_TO_SOT_SMD:SOT-89-5`
- 3D model: SOT-89-5L (KiCad packages3D, STEP)
- 3D model files: `md7218e30pc1-etched.step` / `md7218e30pc1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md7218e30pc1.step` / `md7218e30pc1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590229827190874112) (16 pp, sha256 `a1c66b635dda8f58`, retrieved 2026-10-22, tier: lcsc)
- **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/md7218e30pc1-datasheet.pdf)