LM317MQDCYRG4

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm317mqdcyrg4",
  "title": "LM317MQDCYRG4",
  "brief": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. 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)",
    "lm317mqdcyrg4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM317MQDCYRG4",
    "manufacturer": "Texas Instruments",
    "package": "SOT-223-4",
    "pin_count": 4,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm317m",
    "parts": {
      "symbol": "lm317mqdcyrg4.kicad_sym",
      "footprint": "lm317mqdcyrg4.kicad_mod",
      "model_3d": "lm317mqdcyrg4-hero.glb",
      "model_3d_plain": "lm317mqdcyrg4.glb",
      "model_3d_step": "lm317mqdcyrg4-etched.step",
      "model_3d_step_plain": "lm317mqdcyrg4.step",
      "lbr": "lm317mqdcyrg4.lbr"
    },
    "distributor_links": {
      "lcsc": "C544564",
      "digikey": "296-23127-2-ND",
      "mouser": "595-LM317MQDCYRG4"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:25:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-23127-2-ND",
        "status": "found",
        "lifecycle": "Discontinued at DigiKey"
      },
      "mouser": {
        "pn": "595-LM317MQDCYRG4",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADJUST",
        "type": "input",
        "description": "Output feedback voltage pin; the OUTPUT pin regulates to 1.25V above ADJUST, set by two external resistors."
      },
      {
        "number": "2",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated output voltage; use the recommended capacitor values from the Recommended Operating Conditions table and place the output capacitor as close as possible to the OUTPUT pin."
      },
      {
        "number": "3",
        "name": "INPUT",
        "type": "power_in",
        "description": "Input supply voltage, 2.5V to 37V relative to the OUTPUT pin; place the input capacitor as close as possible to the INPUT pin."
      },
      {
        "number": "4",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Tab/fourth lead shown as OUTPUT in the DCY package drawing, internally the same regulated output as pin 2."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 4 (thermal pad/COMMON) is not explicitly listed in Table 4-1 on page 3, which describes only 3 f; Pin 3 type shown as '–' in the table rather than standard I/O notation, interpreted as power_in type"
        ],
        "pages_sent": 33,
        "cost_usd": 0.2232,
        "at": "2026-10-07T08:24:58"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm317m",
        "pages": 33,
        "sha256": "988337ba1dd9fdf7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm317mqdcyrg4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          6.5,
          1.7
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm317mqdcyrg4-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,
          1.7
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "0449b237b98fa9a96ffb19a6482144663983ee7fbb96e09e1a843eb4bcd7ffbd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-223-4",
      "Category": "Power Management (PMIC)",
      "Pins": "4"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm317mqdcyrg4"
  ],
  "discovery_pitch": "LM317MQDCYRG4 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "lm317mqdcyrg4.step",
    "lm317mqdcyrg4.lbr",
    "docs/hero.png",
    "docs/lm317mqdcyrg4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  "visibility": {
    "public": true
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}