component

L7812CD2T-TR

Public Made by Adom

by adom

STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicl7812cd2t-tr
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs l7812cd2t-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
l7812cd2t-tr-etched.fit.json l7812cd2t-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
l7812cd2t-tr-etched.glb l7812cd2t-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
l7812cd2t-tr-etched.step l7812cd2t-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
l7812cd2t-tr.glb Publish 0.1.0 · Ray 1mo ago
l7812cd2t-tr.kicad_mod Publish 0.1.0 · Ray 1mo ago
l7812cd2t-tr.kicad_sym Publish 0.1.0 · Ray 1mo ago
l7812cd2t-tr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 3 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
l7812cd2t-tr.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json l7812cd2t-tr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md l7812cd2t-tr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago

L7812CD2T-TR

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

L7812CD2T-TR from STMicroelectronics, in a TO-263-2. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 INPUT power_in Unregulated DC input voltage (V_I). Must be at least ~2 V above V_O (typ. 14.5-35 V for the 12 V variant); absolute maximum 35 V. Bypass to GND with a 0.33 uF ceramic capacitor placed close to the pin.
2 GROUND power_in Common ground reference for the regulator. Electrically connected to the package tab on D2PAK; the tab must be soldered to a ground copper pour that also serves as the primary heat-sinking path.
3 OUTPUT power_out Regulated +12 V output (V_O), 2% tolerance for A-grade, 4% for standard C-grade. Deliverable current up to 1.5 A with adequate heat sinking. Bypass to GND with a 0.1 uF ceramic capacitor for stability and transient response.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-263-2
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • L7812CD2T-TR
  • L7812CD2T-TRACD2T-TR
  • L7812CD2T-TRCV
  • L7812CD2T-TRACV
  • L7812CD2T-TRCP
  • L7812CD2T-TRACP
  • L7812CD2T-TRCDT-TR
  • L7812CD2T-TRACDT-TR

CAD (KiCad official)

  • Symbol: L7812CD2T-TR
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263-2 (KiCad packages3D, STEP)
  • 3D model files: l7812cd2t-tr-etched.step / l7812cd2t-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l7812cd2t-tr.step / l7812cd2t-tr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
l7812cd2t-tr.step 108 KB You want the bare part, or you mark your own boards.
l7812cd2t-tr-etched.step 1.8 MB You want the part with L7812CD2T-TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 463 faces against 79 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (58 pp, sha256 32a4d2208c478c95, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF