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Ray Set visibility: public 6244c75 8h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2940t-5-0",
  "title": "LM2940T-5.0",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. 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)",
    "lm2940t-5.0",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM2940T-5.0",
    "manufacturer": "HGSEMI",
    "package": "TO-220",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758163247570927616",
    "parts": {
      "symbol": "lm2940t-5-0.kicad_sym",
      "footprint": "lm2940t-5-0.kicad_mod",
      "model_3d": "lm2940t-5-0-hero.glb",
      "model_3d_plain": "lm2940t-5-0-etched.glb",
      "model_3d_step": "lm2940t-5-0-etched.step",
      "model_3d_step_plain": "lm2940t-5-0.step",
      "lbr": "lm2940t-5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C434573"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T12:21:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input supply, operating range 6 to 26 V (absolute maximum 45 V), with a 1 A output requiring about 0.5 V typical dropout."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the metal tab of the TO-220-3 package is also GND, per the datasheet figure note."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated LDO output, supplying up to 1 A (load range 5 mA to 1 A) with 0.5 V typical and 1.0 V maximum dropout at 1 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 pin table on page 4 is shared with the DFN-8 4*4 package and does not label the TO-220 pins sepa; The datasheet notes 'TAB IS GND' for the package tab. The tab has no pin number, so it is described ; The datasheet is in Chinese. Pin names, types and descriptions were translated by me from the page 4"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0545,
        "at": "2026-11-06T12:21:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758163247570927616",
        "pages": 10,
        "sha256": "0d8a7e85d1ab1ecb",
        "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": "lm2940t-5-0.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2940t-5-0-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          28.525
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        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "0843fd15732521cebd150d13d54f0e078b8a56e7d724ffe74f5e0d3c685d72fa",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "TO-220",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0d8a7e85d1ab1ecb1108959404f56746898bc6716b5e6df9d66ca63187b55625",
      "rows": [
        {
          "name": "Output voltage (LM2940-5)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.85,
          "typ": 5,
          "max": 5.15,
          "conditions": "LM2940-5, 5 mA≤Io≤1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Icc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VO+2V≤VIN≤26V, Io=5mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Icc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 50,
          "max": 80,
          "conditions": "VIN=VO+5V, Io=1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "VRLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 50,
          "conditions": "VO+2V≤VIN≤26V, Io=5mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "VRLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 25,
          "max": 50,
          "conditions": "50 mA≤IO≤1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.5,
          "max": 1,
          "conditions": "Io =1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 130,
          "max": 200,
          "conditions": "Io=100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "Ishort",
          "kind": "electrical",
          "unit": "A",
          "min": 1.5,
          "typ": 1.9,
          "max": null,
          "conditions": "VinMax=26V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum operating voltage",
          "symbol": "VinMax",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 26,
          "max": 31,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (recommended operating range)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 6,
          "typ": null,
          "max": 26,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature (recommended)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": 0,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering 10 s)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "TO-220/TO-263",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "Human body model",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD machine model",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Machine model",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RMS noise",
          "symbol": "Noise",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.003,
          "max": null,
          "conditions": "10Hz-100KHz, Io=5mA",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "LM2940T-5.0 (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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}