# KIA78L05T

**KIA Semicon Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

KIA78L05T from KIA Semicon Tech, in a SOT-89-3. 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 | VOUT | power_out | Regulated +5V output. Nominal 5.0V (4.75V-5.25V over 7V<VIN<20V, 1mA<IOUT<40mA). Output current up to 100mA. Recommended output bypass capacitor 0.1uF placed close to the regulator for stability. |
| 2 | GND | power_in | Ground / common return for input and output. Quiescent current typ 2.8mA flows out this pin. |
| 3 | VIN | power_in | Unregulated positive input voltage. Absolute maximum 30V; must be at least ~1.7V above VOUT (dropout voltage typ 1.7V). Recommended input bypass capacitor 0.33uF placed close to the regulator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KIA Semicon Tech |
| Package | SOT-89-3 |
| Category | PMIC |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `KIA78L05TT`

## CAD (KiCad official)

- Symbol: `KIA78L05T`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `kia78l05t-etched.step` / `kia78l05t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kia78l05t.step` / `kia78l05t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KIA Semicon Tech datasheet](docs/kia78l05t-datasheet.pdf) (3 pp, sha256 `cb91f23d06423aed`, retrieved 2026-08-17, 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/kia78l05t-datasheet.pdf)