AS78L12RTR-G1

{
  "schema_version": 1,
  "type": "component",
  "slug": "as78l12rtr-g1",
  "title": "AS78L12RTR-G1",
  "brief": "Diodes Incorporated Dropout Regulators(LDO), SOT-89. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "as78l12rtr-g1"
  ],
  "component": {
    "mpn": "AS78L12RTR-G1",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Dropout Regulators(LDO)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560107478353805312",
    "parts": {
      "symbol": "as78l12rtr-g1.kicad_sym",
      "footprint": "as78l12rtr-g1.kicad_mod",
      "model_3d": "as78l12rtr-g1-etched.glb",
      "model_3d_plain": "as78l12rtr-g1.glb",
      "model_3d_step": "as78l12rtr-g1-etched.step",
      "model_3d_step_plain": "as78l12rtr-g1.step",
      "lbr": "as78l12rtr-g1.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated +12V positive output. Delivers up to 100mA with typical dropout of 1.7V at 40mA and 1.8V at 100mA. A 0.1uF ceramic output capacitor to GND is recommended for stability and to limit high-frequency noise."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / common return. The center lead is also electrically connected to the large SOT-89 heat-spreader tab; both must be tied to the ground plane, which additionally serves as the thermal path (theta_JC = 28.3 degC/W in SOT-89)."
      },
      {
        "number": "3",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated positive supply input. Accepts up to 36V (absolute max) and up to 36V under recommended operating conditions for the AS78L12 variant. A 0.33uF input capacitor to GND is recommended, especially when the device is located more than a few inches from the bulk supply filter."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560107478353805312",
        "pages": 17,
        "sha256": "dae32ffe04830377",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "as78l12rtr-g1.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": "as78l12rtr-g1-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": "522ddf2d9fbb55d8ad109319e55763d0ddd3393930653f6baee8b70d085cbcc3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-89",
      "Category": "Power Management ICs",
      "Pins": "3"
    }
  },
  "variants": [
    {
      "mpn": "AS78L12RTR-G1",
      "kind": "packaging"
    },
    {
      "mpn": "AS78L12RTR-G1R",
      "kind": "packaging"
    },
    {
      "mpn": "AS78L12RTR-G1Z",
      "kind": "packaging"
    },
    {
      "mpn": "AS78L12RTR-G1M",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "as78l12rtr-g1"
  ],
  "discovery_pitch": "AS78L12RTR-G1 (Diodes Incorporated) 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",
    "as78l12rtr-g1.kicad_sym",
    "as78l12rtr-g1.kicad_mod",
    "as78l12rtr-g1.glb",
    "as78l12rtr-g1.step",
    "as78l12rtr-g1.lbr",
    "docs/hero.png",
    "docs/as78l12rtr-g1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:00:26.323Z"
}