LM317S2

{
  "slug": "lm317s2",
  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm317s2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm317s2.kicad_sym",
    "lm317s2.kicad_mod",
    "lm317s2.glb",
    "lm317s2.step",
    "lm317s2.lbr",
    "docs/hero.png",
    "docs/lm317s2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm317s2-hero.glb",
    "lm317s2-hero.overlay.json",
    "lm317s2-etched.glb"
  ],
  "component": {
    "mpn": "LM317S2",
    "manufacturer": "HGSEMI",
    "package": "TO-263-2L",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758163298556481536",
    "parts": {
      "symbol": "lm317s2.kicad_sym",
      "footprint": "lm317s2.kicad_mod",
      "model_3d": "lm317s2-hero.glb",
      "model_3d_plain": "lm317s2-etched.glb",
      "model_3d_step": "lm317s2-etched.step",
      "model_3d_step_plain": "lm317s2.step",
      "lbr": "lm317s2.lbr"
    },
    "distributor_links": {
      "lcsc": "C5116302"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:36:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADJUST",
        "type": "passive",
        "description": "Adjustment terminal that sets the output voltage through the R1/R2 divider, with adjust current IAdj typically 50 µA and at most 100 µA, held constant by design."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output terminal; output voltage range is 1.2 V to 37 V with output current up to 1.5 A (IMAX)."
      },
      {
        "number": "3",
        "name": "Vin",
        "type": "power_in",
        "description": "Unregulated input supply terminal; the input-to-output differential VI-VO must not exceed 40 V."
      }
    ],
    "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 only pin table (page 2) is generic for the LM317 family and is not labelled per package. The pin; The datasheet lists the I/O type of pin 3 (Vin) as 'O', which conflicts with its function 'input pow; The TO-263-2 dimension drawing on page 8 is text-only and gives no pin numbering, so no pin count or"
        ],
        "pages_sent": 10,
        "cost_usd": 0.115,
        "at": "2026-10-18T17:31:26"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758163298556481536",
        "pages": 10,
        "sha256": "3d7f9c7444e7fa24",
        "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": "lm317s2.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm317s2-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": "1e04c44efc88b2447771c437fb27b7e31d63f49f7efef14a03ad8033488b3e5b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}