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Ray Set visibility: public 210cf0d 21d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm317amdt",
  "title": "LM317AMDT",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. 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)",
    "lm317amdt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM317AMDT",
    "manufacturer": "HGSEMI",
    "package": "TO-252-2",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756671926695800832",
    "parts": {
      "symbol": "lm317amdt.kicad_sym",
      "footprint": "lm317amdt.kicad_mod",
      "model_3d": "lm317amdt-hero.glb",
      "model_3d_plain": "lm317amdt-etched.glb",
      "model_3d_step": "lm317amdt-etched.step",
      "model_3d_step_plain": "lm317amdt.step",
      "lbr": "lm317amdt.lbr"
    },
    "distributor_links": {
      "lcsc": "C7432320"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:24:28Z",
      "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 (调节); the device holds the adjust current Iadj below 100 µA and constant, so the output voltage is set by the external resistor divider returned to this pin."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output (输出) of the 1.2 V to 37 V adjustable regulator, rated up to 1.5 A maximum output current."
      },
      {
        "number": "3",
        "name": "Vin",
        "type": "power_in",
        "description": "Unregulated input supply (输入电源); the input-to-output differential must stay within 40 V (VI-VO maximum)."
      }
    ],
    "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 pin table (page 2) lists only three pins (1 ADJUST, 2 VOUT, 3 Vin) while the package is named TO; The datasheet does not explicitly say which lead is the tab. Pin 2 is labeled VOUT; the tab is assum; The datasheet's I/O column marks Vin as 'O' (output), which contradicts its name and function (input"
        ],
        "pages_sent": 10,
        "cost_usd": 0.1132,
        "at": "2026-10-18T22:20:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756671926695800832",
        "pages": 10,
        "sha256": "d9a555a6ac04206b",
        "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": "lm317amdt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm317amdt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          2.32
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "839e8f4afc63c26605b5f006f36b338fb7bbfab503a15a56816c4402a31250e3",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "TO-252-2",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d9a555a6ac04206b4f646b014d8fe300bbb398ab0ee59635609d7d20b30e06a2",
      "rows": [
        {
          "name": "Reference voltage (set of rows as printed, variant not labeled)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.238,
          "typ": 1.25,
          "max": 1.262,
          "conditions": "3V≤(VIN−VOUT)≤40V, 10mA≤IOUT≤IMAX, P≤PMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage (second row, wider range)",
          "symbol": "Vref",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.25,
          "max": 1.3,
          "conditions": "3V≤(VIN−VOUT)≤40V, 10mA≤IOUT≤IMAX, P≤PMAX",
          "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 row)",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.07,
          "conditions": "3V≤(VIN−VOUT)≤40V",
          "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 row)",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.3,
          "max": 1.5,
          "conditions": "10 mA≤IOUT≤IMAX",
          "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, 10mA≤IOUT≤IMAX",
          "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": "Ripple rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 66,
          "typ": 80,
          "max": null,
          "conditions": "VOUT=10V, f=12 Hz, CADJ=10 μF",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input-output voltage differential",
          "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": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (LM317A grade)",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "LM317A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering 10 s), TO-252/SOT223",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "TO-252/SOT223, soldering 10 s",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "lm317amdt"
  ],
  "discovery_pitch": "LM317AMDT (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "lm317amdt.kicad_mod",
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    "lm317amdt.step",
    "lm317amdt.lbr",
    "docs/hero.png",
    "docs/lm317amdt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "lm317amdt-hero.overlay.json",
    "lm317amdt-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}