l7812abd2t-tr

{
  "slug": "l7812abd2t-tr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "pmic",
    "l7812abd2t-tr"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l7812abd2t-tr.kicad_sym",
    "l7812abd2t-tr.kicad_mod",
    "l7812abd2t-tr.glb",
    "l7812abd2t-tr.step",
    "l7812abd2t-tr.lbr",
    "docs/hero.png",
    "docs/l7812abd2t-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "l7812abd2t-tr-etched.step"
  ],
  "visibility": "public",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "L7812ABD2T-TR",
    "manufacturer": "STMicroelectronics",
    "package": "TO-263-2",
    "pin_count": 3,
    "category": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/l7812abd2t-tr.pdf",
    "parts": {
      "symbol": "l7812abd2t-tr.kicad_sym",
      "footprint": "l7812abd2t-tr.kicad_mod",
      "model_3d": "l7812abd2t-tr-etched.glb",
      "model_3d_plain": "l7812abd2t-tr.glb",
      "model_3d_step": "l7812abd2t-tr-etched.step",
      "model_3d_step_plain": "l7812abd2t-tr.step",
      "lbr": "l7812abd2t-tr.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated positive DC input. Absolute maximum VI = 35 V for VO = 5 to 18 V variants. Typical operating VI = 19 V for the L7812AB (VO nominal + ~7 V headroom). Dropout voltage typ. 2 V at IO = 1 A. Bypass to GND with 0.33 uF (tantalum/ceramic) near the pin, especially if the supply filter is remote."
      },
      {
        "number": "2",
        "name": "GROUND",
        "type": "power_in",
        "description": "Common ground reference for input and output. Also serves as the thermal pad / tab on the D2PAK package (electrically connected to GND). All quiescent current (~4.4 mA typ. for L7812AB) returns through this pin. Solder the tab to a copper pour for heat dissipation (RthJC = 3 °C/W, RthJA = 62.5 °C/W for D2PAK)."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated +12 V DC output. L7812AB tolerance is +/-2% (11.75 to 12.25 V at TJ = 25 °C). Supplies up to 1 A continuously (1.5 A peak with sufficient heat sinking); internally current-limited (short-circuit current typ. 0.2 A at VI = 35 V). Bypass to GND with 0.1 uF ceramic close to the pin to improve transient response. Minimum load current for regulation is 5 mA."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "lcsc": "C186698",
      "digikey": "497-6037-2-ND",
      "mouser": "511-L7812ABD2T-TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T19:02:51Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": "497-6037-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-L7812ABD2T-TR",
        "status": "found"
      }
    }
  }
}