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Ray Set visibility: public 74e1fb8 23d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2940s-5-0",
  "title": "LM2940S-5.0",
  "brief": "HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "LM2940S-5.0",
    "manufacturer": "HTC Korea TAEJIN Tech",
    "package": "SOT-223-3L",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905436477067264",
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      "lbr": "lm2940s-5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C596334",
      "digikey": "LM2940S-5.0-ND",
      "mouser": "926-LM2940S-50"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:01:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM2940S-5.0-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM2940S-50",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply voltage to the regulator; recommended maximum is 26 V, with an absolute survival range of -20 V to 30 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the ground pin current is specified at 250 µA typ/500 µA max at 5 mA load and 16 mA typ/25 mA max at 1 A load."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 5.0 V output; the output is current-limited to about 1.5 A typ with VOUT shorted to 0 V, and dropout is 400 mV typ / 630 mV max at 1 A."
      }
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      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 datasheet is marked Preliminary (Apr. 2019) and states the description may change without notice; The pin table on page 3 is shared by the SOT-223-3L and TO-220-3L variants. Pin numbers 1/2/3 are gi"
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        "pages_sent": 7,
        "cost_usd": 0.0309,
        "at": "2026-10-18T04:59:25"
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      "datasheet": {
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        "pages": 7,
        "sha256": "69be479de06a1346",
        "source_tier": "lcsc"
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      "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"
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        "units": "mm",
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        "seat": "z = 0",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "77ad6dbacc493cb619c728f26d2ddcf461eb0feb6b977b47d01d51e67016f654",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "HTC Korea TAEJIN Tech",
      "Package": "SOT-223-3L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "69be479de06a1346d0efabfad1af52fd541c1cab8e48c5b883c7717828a1c263",
      "rows": [
        {
          "name": "Output Voltage Tolerance",
          "symbol": "VO",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "IOUT = 5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Tolerance",
          "symbol": "VO",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "5 mA ≤ IOUT ≤ 1A, (VOUT+1V) ≤ VIN ≤ 26V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.06,
          "max": 0.5,
          "conditions": "IOUT = 5mA, (VOUT+1V) ≤ VIN ≤ 26V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1,
          "conditions": "VIN = VOUT +1V, 5 mA ≤ IOUT ≤ 1A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Temperature Coefficient",
          "symbol": "ΔVOUT /ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 60,
          "max": 180,
          "conditions": "IOUT = 5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 400,
          "max": 630,
          "conditions": "IOUT = 1A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ground Pin Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 250,
          "max": 500,
          "conditions": "IOUT = 5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ground Pin Current",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 16,
          "max": 25,
          "conditions": "IOUT = 1A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage (Survival)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -20,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "IOUT_MAX",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "TSOL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range (absolute maximum table)",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 26,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range (recommended)",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-To-Ambient / SOT-223-3L",
          "symbol": "θJA-SOT-223-3L",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 137,
          "conditions": "No heat sink / No air flow / No adjacent heat source / TA=25°C",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "LM2940S-5.0 (HTC Korea TAEJIN Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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