component
LM7808T
Public Made by Adomby adom
HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 14d ago |
| viewers | 14d ago |
| lm7808t-etched.glb | 14d ago |
| lm7808t-etched.step | 14d ago |
| lm7808t-hero.glb | 14d ago |
| lm7808t-hero.overlay.json | 14d ago |
| lm7808t.glb | 14d ago |
| lm7808t.kicad_mod | 14d ago |
| lm7808t.kicad_sym | 14d ago |
| lm7808t.lbr | 14d ago |
| lm7808t.step | 14d ago |
| package.json | 14d ago |
| page.json | 14d ago |
| README.md | 14d ago |
LM7808T
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220
LM7808T from HGSEMI, 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 | Vcc | power_in | Unregulated input supply pin; for the LM7808 the datasheet gives an input voltage range of 11 V to 35 V, and the absolute maximum input voltage is 35 V. |
| 2 | GND | power_in | Ground (common) reference pin for the regulator. |
| 3 | OUT | power_out | Regulated 8 V output (7.7 V to 8.3 V at VI=14 V, Io=0.5 A) with a maximum output current IOM of 1.2 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| 输出电压 (Output voltage) | Vo | 7.7 | 8 | 8.3 | V | VI=14V, Io=0.5A, PD≤15W | 4 |
| 电压调整率 (Line regulation) | REGv | 5 | 160 | mV | VI=11~22V | 4 | |
| 负载调整率 (Load regulation) | REGL | 10 | 160 | mV | Io=5mA~1.2A | 4 | |
| 输入电压 (Input voltage) | VI | 11 | 35 | V | 4 | ||
| 纹波抑制比 (Ripple rejection) | Srip | 56 | dB | VI=12~25V, Io=100mA, f=120Hz | 4 | ||
| 最大输出电流 (Maximum output current) | IOM | 1.2 | A | 4 | |||
| 输出电压温度系数 (Output voltage temperature coefficient) | ∆V/T | 0.8 | mV/℃ | Io=5mA, Tj=0~125℃ | 4 | ||
| 输出噪声电压 (Output noise voltage) | VNO | 52 | μV | f=10Hz~100kHz | 4 | ||
| 输入电压 (Input voltage, absolute maximum) | VIN | 35 | V | 3 | |||
| 功耗 (Power dissipation) | PD | 15 | W | 3 | |||
| 工作环境温度 (Operating ambient temperature) | Tamb | 0 | 125 | ℃ | 3 | ||
| 贮存温度 (Storage temperature) | Tstg | -55 | 150 | ℃ | 3 | ||
| 引脚温度 (Lead temperature, soldering) | TLEAD | 245 | ℃ | soldering 10s | 3 | ||
| 结至环境热阻 (Junction-to-ambient thermal resistance) | RθJA | 23.9 | °C/W | TO-220 package | 3 | ||
| 结至外壳（顶部）热阻 (Junction-to-case top thermal resistance) | RθJC(top) | 16.7 | °C/W | TO-220 package | 3 | ||
| 结至电路板热阻 (Junction-to-board thermal resistance) | RθJB | 5.3 | °C/W | TO-220 package | 3 | ||
| 结至外壳（底部）热阻 (Junction-to-case bottom thermal resistance) | RθJC(bot) | 1.7 | °C/W | TO-220 package | 3 | ||
| 结至顶部特征参数 (Junction-to-top characterization parameter) | ΨJT | 3.2 | °C/W | TO-220 package | 3 | ||
| 结至电路板特征参数 (Junction-to-board characterization parameter) | ΨJB | 5.3 | °C/W | TO-220 package | 3 |
CAD (KiCad official)
- Symbol:
LM7808T - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
lm7808t-etched.step/lm7808t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm7808t.step/lm7808t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (11 pp, sha256
b569535747cdcefd, retrieved 2026-10-20, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).