# L7808CV

**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

L7808CV from UMW, in a TO-220. 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 | I | power_in | Unregulated input pin; the absolute maximum input voltage is 35 V for VO = 5 to 18 V and 40 V for VO = 24 V. |
| 2 | G | power_in | Ground (common) reference pin for the regulator; the datasheet gives no additional limits for this pin. |
| 3 | O | power_out | Regulated output pin, rated for output current up to 1.2 A, with internal thermal overload and short-circuit protection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | TO-220 |
| 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 (TJ=25°C) | VO | 7.7 | 8 | 8.3 | V | TJ=25°C | 4 |
| Output voltage (over temperature) | VO | 7.6 | 8 | 8.4 | V | TJ=-40 to 125°C (table note) | 4 |
| Line regulation | ΔVO |  |  | 100 | mV | IO=5mA to 1A, PO≤15W, VI=11.5V to 23V | 4 |
| Line regulation (second condition) | ΔVO |  |  | 80 | mV | VI=11V to 17V | 4 |
| Load regulation | ΔVO |  |  | 160 | mV | TJ=25°C, IO=5mA to 1.2A | 4 |
| Load regulation (250 mA to 750 mA) | ΔVO |  |  | 80 | mV | TJ=25°C, IO=250mA to 750mA | 4 |
| Quiescent current | IQ |  |  | 6 | mA | TJ=25°C | 4 |
| Quiescent current change (line) | ΔIQ |  |  | 0.5 | mA | VI=11.5V to 25V | 4 |
| Quiescent current change (load) | ΔIQ |  |  | 1 | mA | IO=5mA to 1A | 4 |
| Input voltage (VO=5 to 18V) | VI |  |  | 35 | V | VO=5 to 18V | 1 |
| Operating temperature range | TOPR | -40 |  | 125 | °C |  | 1 |
| Storage temperature range | TSTG | -65 |  | 150 | °C |  | 1 |
| Output voltage temperature coefficient | ΔVO/ΔT |  | 0.45 |  | mV/°C | IO=5mA | 4 |
| Short circuit current | ISC |  | 1 |  | A | TJ=25°C, VI=35V | 4 |
| Supply voltage rejection | SVR |  | 62 |  | dB | VI=11.5V to 21.5V, f=120Hz, IO=500mA | 4 |
| Thermal resistance junction-case (TO-220) | RthJC |  | 5 |  | °C/W |  | 1 |
| Thermal resistance junction-ambient (TO-220) | RthJA |  | 50 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `L7808CV`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `l7808cv-etched.step` / `l7808cv-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l7808cv.step` / `l7808cv.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755878760052998144) (17 pp, sha256 `dacd5725e1e3b73b`, retrieved 2026-10-17, 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/l7808cv-datasheet.pdf)