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LM7812CS2

Public Made by Adom

by adom

HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM7812CS2

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-2

LM7812CS2 from HGSEMI, in a TO-263-2. 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 Vcc power_in Unregulated input supply pin; the datasheet limits input voltage to 35 V maximum (absolute maximum VIN) and specifies a 14.5 V to 35 V input range for the 12 V version.
2 GND power_in Ground reference pin for the regulator.
3 OUT power_out Regulated 12 V output pin (Vo 11.5 V to 12.5 V at Io = 0.5 A) with a maximum output current of 1.5 A.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-263-2
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
Input voltage (absolute maximum) VIN 35 V 3
Power dissipation (absolute maximum) PD 15 W 3
Operating ambient temperature Tamb 0 125 ℃ 3
Storage temperature Tstg -55 150 ℃ 3
Lead temperature (soldering) TLEAD 245 ℃ soldering, 10 s 3
Output voltage Vo 11.5 12 12.5 V VI=19V, Io=0.5A, PD≤15W 5
Line regulation REGv 3 120 mV VI=16~22V 5
Load regulation REGL 12 240 mV Io=5mA~1.5A 5
Input voltage VI 14.5 35 V 5
Ripple rejection Srip 55 dB VI=15~25V, Io=100mA, f=120Hz 5
Maximum output current IOM 1.5 A 5
Output voltage temperature coefficient ∆V/T -0.8 mV/℃ Io=5mA, Tj=0~85℃ 5
Output noise voltage VNO 75 µV f=10Hz~100kHz 5

CAD (KiCad official)

  • Symbol: LM7812CS2
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263-2 (KiCad packages3D, STEP)
  • 3D model files: lm7812cs2-etched.step / lm7812cs2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm7812cs2.step / lm7812cs2.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (11 pp, sha256 be96532d928e76ec, 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