79L12

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  "type": "component",
  "slug": "79l12",
  "title": "79L12",
  "brief": "TWGMC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.3",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "pmic",
    "79l12"
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  "component": {
    "mpn": "79L12",
    "manufacturer": "TWGMC",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2211031900_TWGMC-79L12_C5246139.pdf",
    "parts": {
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      "footprint": "79l12.kicad_mod",
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      "lbr": "79l12.lbr"
    },
    "distributor_links": {
      "lcsc": "C5246139"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common reference pin. Common return for input and output; for a negative regulator this pin is the most-positive terminal."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated negative input voltage. Absolute max Vi = -35 V; typical operating range -14.5 V to -27 V. Bypass with a 0.33 uF capacitor (Ci) close to the pin."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated -12 V output (typ). Delivers up to 100 mA (IOM 0.1 A). Bypass with a 0.1 uF capacitor (Co) close to the pin for optimum stability and transient response."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
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        "pages": 2,
        "sha256": "c1a0d6c49d6d3487",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.95,
        -1.5
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-89-3@sha256:0b8db9f4a8f2547a",
      "mark": "drawn"
    },
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "79l12-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "30b3fee39e5f7bc74e7ec9c31bb419f547fc856137696ba1802c9d3ede28237a",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "rows": [
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "recommended_operating",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "79l12"
  ],
  "discovery_pitch": "79L12 (TWGMC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "79l12.kicad_sym",
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    "79l12.glb",
    "79l12.step",
    "79l12-etched.step",
    "79l12.lbr",
    "docs/hero.png",
    "docs/79l12-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "79l12-etched.glb",
    "79l12-hero.glb",
    "79l12-hero.overlay.json"
  ],
  "visibility": "public",
  "updated_at": "2026-09-24T15:24:41.138Z",
  "description": "TWGMC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}