# LM7808TG

**HANSCHIP semiconductor** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220-3L

LM7808TG from HANSCHIP semiconductor, in a TO-220-3L. 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 | Vcc | power_in | Supply input pin (电源) for the LM7808; the datasheet gives the 7808 input voltage range as 11 V to 35 V, with an absolute maximum input voltage of 35 V. |
| 2 | GND | power_in | Ground pin (地), the common return for the regulator. |
| 3 | OUT | power_out | Regulated output pin (输出); the LM7808 output is 8.0 V typical (7.7 V to 8.3 V) at VI=14 V and Io=0.5 A, with a maximum output current IOM of 1.2 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | TO-220-3L |
| 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 | Vo | 7.7 | 8 | 8.3 | V | VI=14V，Io=0.5A，PD≤15W | 4 |
| Voltage regulation | REGv |  | 5 | 160 | mV | VI=11~22V | 4 |
| Load regulation | REGL |  | 10 | 160 | mV | Io=5mA~1.2A | 4 |
| Input voltage | VI | 11 |  | 35 | V |  | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 35 | V |  | 3 |
| Power dissipation | PD |  |  | 15 | W |  | 3 |
| Operating ambient temperature | Tamb | 0 |  | 125 | ℃ |  | 3 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 3 |
| Lead temperature (soldering) | TLEAD |  |  | 245 | ℃ | 焊接 10s | 3 |
| Ripple rejection | Srip |  | 56 |  | dB | VI=12~25V，Io=100mA，f=120Hz | 4 |
| Maximum output current | IOM |  | 1.2 |  | A |  | 4 |
| Output voltage temperature coefficient | ∆V/T |  | 0.8 |  | mV/℃ | Io=5mA，Tj=0~125℃ | 4 |
| Output noise voltage | VNO |  | 52 |  | μV | f=10Hz~100kHz | 4 |

## CAD (KiCad official)

- Symbol: `LM7808TG`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220-3L (KiCad packages3D, STEP)
- 3D model files: `lm7808tg-etched.step` / `lm7808tg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm7808tg.step` / `lm7808tg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HANSCHIP semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757279625720811520) (11 pp, sha256 `8b617ecef56eafc9`, retrieved 2026-10-18, 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-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/lm7808tg-datasheet.pdf)