L78M12ACDT-TR

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  "slug": "l78m12acdt-tr",
  "title": "L78M12ACDT-TR",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "L78M12ACDT-TR",
    "manufacturer": "STMicroelectronics",
    "package": "TO-252-2(DPAK)",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/l78m12acdt-tr.pdf",
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    "distributor_links": {
      "digikey": "497-1210-2-ND",
      "lcsc": "C161629"
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    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated DC input supply. Absolute maximum V_I = 35 V (for V_O up to 18 V). Requires a 0.33 µF input bypass capacitor if the regulator is located far from the power-supply filter."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference for input and output. Electrically connected to the exposed DPAK tab (thermal pad) which serves as the primary heatsink connection."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated +12 V output, 500 mA capable. V_O typ = 12 V (11.75 to 12.25 V at T_J = 25 °C). A 0.1 µF output capacitor improves transient response."
      }
    ],
    "provenance": {
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        "pages": 29,
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        "described": 3,
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        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
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        -2.28
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-252-2@sha256:18c28e5e147d5e9b",
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        "checked": "2026-10-07",
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        "sha256": "952a92ca87b97d7514fd63ee0731fd63567a43eddcc5835f444132da580373db",
        "checked": "2026-10-16",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TO-252-2(DPAK)",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "for VO = 5 to 18 V",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "L78M12ACDT-TR (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "visibility": "public",
  "variants": [
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      "mpn": "L78M12ACDT-TR",
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  "updated_at": "2026-09-24T23:38:56.859Z",
  "description": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}