# ICW7805T3G

**ICW** · Linear Voltage Regulators (LDO) · TO-263

ICW7805T3G from ICW, in a TO-263. 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 supply; the datasheet gives a recommended VIN of 7 V to 25 V for the ICW7805, with an absolute maximum range of 7.0 V to 35 V. |
| 2 | COMMON | power_in | Common ground pin, shared between input and output as the return path for the regulator. |
| 3 | OUTPUT | power_out | Regulated 5 V output (VO 4.8 V to 5.2 V at TJ = 25 °C) that the datasheet rates for output currents up to 1000 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | TO-263 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| 输出电压 | VO | 4.8 | 5 | 5.2 | V | TJ=25℃ | 7 |
| 输出电压 | VO | 4.75 | 5 | 5.25 | V | VIN=7～18V，IO=5～1000mA | 7 |
| 线性调整率 | REGV |  | 6 | 100 | mV | VIN=7～25V，TJ=25℃ | 7 |
| 线性调整率 | REGV |  | 2 | 50 | mV | VIN=8～12V，TJ=25℃ | 7 |
| 负载调整率 | REGL |  | 25 | 160 | mV | IO=5～1500mA，TJ=25℃ | 7 |
| 负载调整率 | REGL |  | 10 | 80 | mV | IO=250～750mA，TJ=25℃ | 7 |
| 偏置电流 | IB |  | 3 | 7.5 | mA | TJ=25℃ | 7 |
| 偏置电流变化量 | ∆IB |  |  | 0.8 | mA | VIN=7～23V | 7 |
| 偏置电流变化量 | ∆IB |  |  | 0.5 | mA | IO=5～1000mA | 7 |
| 电源抑制比 | SVR | 62 | 80 |  | dB | VIN=8～18V，f=120Hz | 7 |
| 输入电源电压 | VIN | 7 |  | 35 | V |  | 6 |
| 功耗 | PD |  |  | 10 | W |  | 6 |
| 结温 | TJ |  |  | 150 | ℃ |  | 6 |
| 贮存温度 | Tstg | -65 |  | 150 | ℃ |  | 6 |
| 焊接温度 | TL |  |  | 245 | ℃ | 10秒，TO263 | 6 |
| 输入电源电压 | VIN | 7 |  | 25 | V | ICW7805 | 6 |
| 输出电流 | IO |  |  | 1000 | mA |  | 6 |
| 结温 | TJ | -40 |  | 125 | ℃ |  | 6 |
| 工作环境温度 | Tamb | -40 |  | 85 | ℃ |  | 6 |
| 热阻（结-环境） | RJA |  | 25.3 |  | ℃/W | TO263 | 6 |
| 热阻（结-外壳） | RJC |  | 18 |  | ℃/W | TO263 | 6 |

## CAD (KiCad official)

- Symbol: `ICW7805T3G`
- Footprint: `Package_TO_SOT_SMD:TO-263-2`
- 3D model: TO-263 (KiCad packages3D, STEP)
- 3D model files: `icw7805t3g-etched.step` / `icw7805t3g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `icw7805t3g.step` / `icw7805t3g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ICW datasheet](docs/icw7805t3g-datasheet.pdf) (13 pp, sha256 `df62efb858d8aa8f`, retrieved 2026-10-29, 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/icw7805t3g-datasheet.pdf)