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Ray Set visibility: public 244cc82 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm317s2",
  "title": "LM317S2",
  "brief": "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.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm317s2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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,
          10,
          4.42
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 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,
          10,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1e04c44efc88b2447771c437fb27b7e31d63f49f7efef14a03ad8033488b3e5b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "TO-263-2L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3d7f9c7444e7fa2484fb9bc893bbb1034a35c2f4d5e8757cb8cd29ed6ad9d2cd",
      "rows": [
        {
          "name": "Input-output differential voltage",
          "symbol": "VI-VO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (LM317 grade)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": 0,
          "typ": null,
          "max": 70,
          "conditions": "LM317 grade (LM317A is -40~85, sibling not listed)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature, soldering 10 s",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "TO-220/TO-263, 10 s soldering",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.238,
          "typ": 1.25,
          "max": 1.262,
          "conditions": "3V≤ (VIN − VOUT) ≤40V , 10 mA ≤IOUT ≤IMAX, P ≤PMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage (second printed row)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.25,
          "max": 1.3,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.04,
          "conditions": "3V≤ (VIN − VOUT) ≤40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line regulation (second printed row)",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.07,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "10 mA ≤IOUT ≤IMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load regulation (second printed row)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": 1.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal regulation",
          "symbol": "Reftherm",
          "kind": "electrical",
          "unit": "%/W",
          "min": null,
          "typ": 0.04,
          "max": 0.07,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current",
          "symbol": "IAdj",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 50,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current change",
          "symbol": "ΔIAdj",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "3V≤ (VIN − VOUT) ≤40V , 10 mA ≤IOUT ≤IMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature stability",
          "symbol": "TS",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "TMIN ≤TJ ≤TMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum load current to maintain regulation",
          "symbol": "ILmin",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.5,
          "max": 10,
          "conditions": "(VIN − VOUT) = 40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": 1.95,
          "max": null,
          "conditions": "(VIN − VOUT) ≤15V, T package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "Imax",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "(VIN − VOUT) = 40V, T package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RMS noise",
          "symbol": "N",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.003,
          "max": null,
          "conditions": "10 Hz ≤f ≤10 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "VOUT=10V, f=120 Hz, CADJ=0 μF",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection (second printed row)",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 66,
          "max": 80,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm317s2"
  ],
  "discovery_pitch": "LM317S2 (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
  },
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    "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"
  ],
  "visibility": {
    "public": true
  }
}