# KIA7805AF-RTF

**KEC Semicon** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK

KIA7805AF-RTF from KEC Semicon, in a DPAK. 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 | INPUT | power_in | Unregulated input voltage; the absolute maximum input voltage is 35 V for KIA7805/7815 and 40 V for KIA7818/7824 (Ta=25°C), and input-to-ground surges above the rating may destroy the device. |
| 2 | GND | power_in | Ground reference terminal; the package serves as GND, and a negative voltage must not be applied to the input or output terminals. |
| 3 | OUTPUT | power_out | Regulated output voltage (5 V to 24 V depending on the variant); the output must not be driven above the input voltage, and a protection diode is recommended when it can be. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | DPAK |
| Category | Power Management (PMIC) |
| Pins | 3 |

## 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 | VOUT | 4.8 | 5 | 5.2 | V | Tj=25℃, IOUT=100mA | 3 |
| Output Voltage | VOUT | 4.75 |  | 5.25 | V | 7.0V≦VIN≦20V, 5.0mA≦IOUT≦1.0A, Po≦15W | 3 |
| Input Regulation | Reg line |  | 3 | 100 | mV | Tj=25℃, 7.0V≦VIN≦25V | 3 |
| Input Regulation | Reg line |  | 1 | 50 | mV | Tj=25℃, 8.0V≦VIN≦12V | 3 |
| Load Regulation | Reg load |  | 15 | 100 | mV | Tj=25℃, 5mA≦IOUT≦1.4A | 3 |
| Load Regulation | Reg load |  | 5 | 50 | mV | Tj=25℃, 250mA≦IOUT≦750mA | 3 |
| Quiescent Current | IB |  | 4.2 | 8 | mA | Tj=25℃, IOUT=5mA | 3 |
| Quiescent Current Change | ΔIB |  |  | 1.3 | mA | 7.0V≦VIN≦25V | 3 |
| Ripple Rejection Ratio | RR | 62 | 78 |  | dB | f=120Hz, 8.0V≦VIN≦18V, IOUT=50mA, Tj=25℃ | 3 |
| Input Voltage (KIA7805, KIA7815 rating) | VIN |  |  | 35 | V | KIA7805 / KIA7815 column | 1 |
| Power Dissipation-1 (No Heatsink), AF | PD1 |  |  | 1.3 | W | No heatsink, AF (DPAK) package | 1 |
| Power Dissipation-2 (Infinite Heatsink), AF | PD2 |  |  | 12 | W | Infinite heatsink, AF (DPAK) package | 1 |
| Operating Junction Temperature | Tj | -40 |  | 150 | ℃ |  | 1 |
| Operating Temperature | Topr | -40 |  | 85 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Case (AF DPAK) | J-C |  | 10.4 |  | C/W | PD - Ta (AF-Type : DPAK), Tc=25℃ | 20 |
| Thermal Resistance, Junction-to-Ambient (AF DPAK) | J-A |  | 96.1 |  | C/W | PD - Ta (AF-Type : DPAK) | 20 |

## CAD (KiCad official)

- Symbol: `KIA7805AF-RTF`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: DPAK (KiCad packages3D, STEP)
- 3D model files: `kia7805af-rtf-etched.step` / `kia7805af-rtf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kia7805af-rtf.step` / `kia7805af-rtf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KEC Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590919306194595840) (20 pp, sha256 `4f334b2555e7dc84`, retrieved 2026-10-18, 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/kia7805af-rtf-datasheet.pdf)