component
LM78M12ADT
Public Made by Adomby adom
HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. 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 | 17d ago |
| viewers | 17d ago |
| lm78m12adt-etched.glb | 17d ago |
| lm78m12adt-etched.step | 17d ago |
| lm78m12adt-hero.glb | 17d ago |
| lm78m12adt-hero.overlay.json | 17d ago |
| lm78m12adt.glb | 17d ago |
| lm78m12adt.kicad_mod | 17d ago |
| lm78m12adt.kicad_sym | 17d ago |
| lm78m12adt.lbr | 17d ago |
| lm78m12adt.step | 17d ago |
| package.json | 17d ago |
| page.json | 17d ago |
| README.md | 17d ago |
LM78M12ADT
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2
LM78M12ADT from HGSEMI, in a TO-252-2. 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 | VIN | power_in | Input voltage pin; absolute maximum 35 V for 5 V to 18 V output versions, and the 12 V version is tested with VI = 14.5 V to 30 V for line regulation. |
| 2 | GND | power_in | Ground pin, drawn as a short center lead that is connected to the GND tab. |
| 3 | VOUT | power_out | Regulated 12 V output (11.5 V to 12.5 V at TJ = +25 °C) for the LM78M12A, rated up to 1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-252-2 |
| 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℃) | VO | 11.5 | 12 | 12.5 | V | TJ = +25℃ | 5 |
| Output Voltage (IO = 5mA to 1A, VI = 14.5V to 27V) | VO | 11.4 | 12 | 12.6 | V | IO = 5mA to 1A, VI = 14.5V to 27V | 5 |
| Line Regulation | VO | 100 | mV | IO = 200mA, TJ = +25℃, VI = 14.5V to 30V | 5 | ||
| Line Regulation | VO | 50 | mV | IO = 200mA, TJ = +25℃, VI = 16V to 30V | 5 | ||
| Load Regulation | VO | 240 | mV | IO = 5mA to 0.5A, TJ = +25℃ | 5 | ||
| Load Regulation | VO | 120 | mV | IO = 5mA to 200mA, TJ = +25℃ | 5 | ||
| Quiescent Current | IQ | 4.1 | 6 | mA | TJ = +25℃ | 5 | |
| Quiescent Current Change | IQ | 0.5 | mA | IO = 5mA to 350mA | 5 | ||
| Quiescent Current Change | IQ | 0.8 | mA | IO = 200mA, VI = 14.5V to 30V | 5 | ||
| Input Voltage (for VO = 5V to 18V) | VI | 35 | V | for VO = 5V to 18V | 2 | ||
| Operating Junction Temperature Range | TOPR | 0 | 125 | ℃ | Operating junction temperature range | 2 | |
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 2 | ||
| Lead Temperature (Soldering, 10 seconds) | TL | 245 | ℃ | Soldering, 10 seconds | 2 | ||
| Thermal Resistance Junction-Case | RθJC | 2.5 | ℃/W | TO-252-2, Tc = +25 ℃ | 2 | ||
| Thermal Resistance Junction-Air | RθJA | 92 | ℃/W | TO-252-2, Ta = +25 ℃ | 2 | ||
| Output Voltage Drift | V/T | -0.5 | mV/℃ | IO = 5mA, TJ = -40 to +85℃ | 5 | ||
| Output Noise Voltage | VN | 75 | µV/Vo | f = 10Hz to 100kHz | 5 | ||
| Ripple Rejection | RR | 80 | dB | f = 120Hz, IO = 300mA, VI = 15V to 25V, TJ = +25℃ | 5 | ||
| Dropout Voltage | VD | 2 | V | TJ = +25℃, IO = 500mA | 5 | ||
| Short Circuit Current | ISC | 300 | mA | TJ = +25℃, VI = 35V | 5 | ||
| Peak Current | IPK | 700 | mA | TJ = +25℃ | 5 |
CAD (KiCad official)
- Symbol:
LM78M12ADT - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2 (KiCad packages3D, STEP)
- 3D model files:
lm78m12adt-etched.step/lm78m12adt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm78m12adt.step/lm78m12adt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (11 pp, sha256
c40b29b635c9cfa3, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).