78L12G-AB3-R

{
  "schema_version": 1,
  "type": "component",
  "slug": "78l12g-ab3-r",
  "title": "78L12G-AB3-R",
  "brief": "UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "78l12g-ab3-r"
  ],
  "component": {
    "mpn": "78L12G-AB3-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "docs/78l12g-ab3-r-datasheet.pdf",
    "parts": {
      "symbol": "78l12g-ab3-r.kicad_sym",
      "footprint": "78l12g-ab3-r.kicad_mod",
      "model_3d": "78l12g-ab3-r-etched.glb",
      "model_3d_plain": "78l12g-ab3-r.glb",
      "model_3d_step": "78l12g-ab3-r-etched.step",
      "model_3d_step_plain": "78l12g-ab3-r.step",
      "lbr": "78l12g-ab3-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C75501"
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated +12V output. Typical VOUT=12.0V (11.52-12.48V at TJ=25°C); supplies up to 100mA. Bypass with 0.1µF ceramic close to the pin for stability and transient response."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common return. On SOT-89 this is the large tab pin and provides the primary thermal path to the PCB copper."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated DC input. For the 12V variant: 14.5V ≤ VIN ≤ 27V for regulation, 35V absolute maximum. Bypass with 0.33µF close to the pin to ensure stability."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "docs/78l12g-ab3-r-datasheet.pdf",
        "pages": 8,
        "sha256": "019cf0ff8e450efc",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "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"
    },
    "models_3d": [
      {
        "file": "78l12g-ab3-r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.5,
          1.52
        ],
        "zmin_mm": 0.0,
        "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": "78l12g-ab3-r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.5,
          1.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "29f9d18221c1730cafbc56cf7856aaf50b26c6e823017197f4ced496352bcc79",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "SOT-89",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "78l12g-ab3-r"
  ],
  "discovery_pitch": "78L12G-AB3-R (UTC Unisonic Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "78l12g-ab3-r.kicad_sym",
    "78l12g-ab3-r.kicad_mod",
    "78l12g-ab3-r.glb",
    "78l12g-ab3-r.step",
    "78l12g-ab3-r-etched.step",
    "78l12g-ab3-r.lbr",
    "docs/hero.png",
    "docs/78l12g-ab3-r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "updated_at": "2026-09-24T15:22:16.190Z"
}