78L08-300

{
  "schema_version": 1,
  "type": "component",
  "slug": "78l08-300",
  "title": "78L08-300",
  "brief": "UMW Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "78l08-300",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "78L08-300",
    "manufacturer": "UMW",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4bcde69de6c03a25f088c42360c6701a.pdf",
    "parts": {
      "symbol": "78l08-300.kicad_sym",
      "footprint": "78l08-300.kicad_mod",
      "model_3d": "78l08-300-hero.glb",
      "model_3d_plain": "78l08-300-etched.glb",
      "model_3d_step": "78l08-300-etched.step",
      "model_3d_step_plain": "78l08-300.step",
      "lbr": "78l08-300.lbr"
    },
    "distributor_links": {
      "lcsc": "C347275",
      "digikey": "4518-78L08-300TR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:07:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "4518-78L08-300TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output pin providing the fixed 8V output for the 78L08, with a maximum output current of 0.3 A."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the regulator."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input pin; the absolute maximum input voltage is 35 V for output voltages from 5 V to 18 V, which includes the 8 V 78L08."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pinout is taken from the page 1 SOT89/TO92 pin table and functional block diagram, which assign "
        ],
        "pages_sent": 15,
        "cost_usd": 0.0134,
        "at": "2026-10-27T01:07:33"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4bcde69de6c03a25f088c42360c6701a.pdf",
        "pages": 15,
        "sha256": "43e8779d625b95a5",
        "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": "78l08-300.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "78l08-300-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "b9f4c4856d44624cf20f2336e89661b5b7e48aed74a54d77f0573ea8ccfd2154",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "SOT-89-3",
      "Category": "Power Management ICs",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "43e8779d625b95a53ff01023ab80505c4a2cfd4c394bc0bf8a2b1029d21e8a6d",
      "rows": [
        {
          "name": "Output Voltage",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 7.88,
          "typ": 8,
          "max": 8.12,
          "conditions": "TJ=25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "V",
          "min": 7.68,
          "typ": 8,
          "max": 8.32,
          "conditions": "10.5V≤VI≤23V, IO=5mA~200mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 56,
          "typ": 80,
          "max": null,
          "conditions": "11.5V≤VI≤21.5V, f=120Hz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "Iq1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.2,
          "max": 6,
          "conditions": "IO=0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "VO=5V~18V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "High power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 120,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "78l08-300"
  ],
  "discovery_pitch": "78L08-300 (UMW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "78l08-300.kicad_sym",
    "78l08-300.kicad_mod",
    "78l08-300.glb",
    "78l08-300.step",
    "78l08-300.lbr",
    "docs/hero.png",
    "docs/78l08-300-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "78l08-300-hero.glb",
    "78l08-300-hero.overlay.json",
    "78l08-300-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}