# HD78L05

**Broadic** · Linear Voltage Regulators (LDO) · SOT-89-3

HD78L05 from Broadic, in a SOT-89-3. 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 | OUT | power_out | Regulated 5V output (4.8V to 5.2V at 5mA to 100mA load, maximum output current 100mA). |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | IN | power_in | Unregulated input supply with an absolute maximum input voltage of 36V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Broadic |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `HD78L05`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `hd78l05-etched.step` / `hd78l05-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hd78l05.step` / `hd78l05.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Broadic datasheet](docs/hd78l05-datasheet.pdf) (7 pp, sha256 `9da26b8f8990b869`, retrieved 2026-10-27, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/hd78l05-datasheet.pdf)