LM317D2T

{
  "slug": "lm317d2t",
  "version": "0.1.0",
  "type": "component",
  "description": "MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm317d2t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm317d2t.kicad_sym",
    "lm317d2t.kicad_mod",
    "lm317d2t.glb",
    "lm317d2t.step",
    "lm317d2t.lbr",
    "docs/hero.png",
    "docs/lm317d2t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm317d2t-hero.glb",
    "lm317d2t-hero.overlay.json",
    "lm317d2t-etched.glb"
  ],
  "component": {
    "mpn": "LM317D2T",
    "manufacturer": "MSKSEMI",
    "package": "TO-263",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590922592784101376",
    "parts": {
      "symbol": "lm317d2t.kicad_sym",
      "footprint": "lm317d2t.kicad_mod",
      "model_3d": "lm317d2t-hero.glb",
      "model_3d_plain": "lm317d2t-etched.glb",
      "model_3d_step": "lm317d2t-etched.step",
      "model_3d_step_plain": "lm317d2t.step",
      "lbr": "lm317d2t.lbr"
    },
    "distributor_links": {
      "lcsc": "C20538908",
      "digikey": "497-1571-5-ND",
      "mouser": "863-LM317D2T"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:23:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-1571-5-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "863-LM317D2T",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Input pin for the unregulated supply; the datasheet limits the input-output voltage difference (VI-VO) to 40 V maximum."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin as labelled in the datasheet pinout; the datasheet gives no further functional description for this pin."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated output pin, adjustable from 1.3 V to 37 V with output current up to 1.5 A."
      }
    ],
    "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 datasheet labels pin 2 as GND, but the block diagram and application circuits refer to a VAdj/Ia; Pin 1 and pin 3 descriptions combine the pinout labels on page 2 with ratings from pages 2 and 3 (VI"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0283,
        "at": "2026-10-20T17:21:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590922592784101376",
        "pages": 6,
        "sha256": "ab7f9e35d35eae9e",
        "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": "lm317d2t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "804a3f76e4182a02567b2429bdc9a585b857158fb8543fccd29c8eb6780e1310",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm317d2t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2a5eec0b442165d29060224b8a54fe105ca6e71c20c5fbe0fa946fd9035b0f4",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}