main
Ray Set visibility: public 8763581 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm1117mdt-3-3",
  "title": "LM1117MDT-3.3",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. 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)",
    "lm1117mdt-3.3",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "LM1117MDT-3.3",
    "manufacturer": "HGSEMI",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8609178867836215296",
    "parts": {
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      "footprint": "lm1117mdt-3-3.kicad_mod",
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      "lbr": "lm1117mdt-3-3.lbr"
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    "distributor_links": {
      "lcsc": "C498159"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T08:59:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND/ADJ",
        "type": "power_in",
        "description": "Ground pin for the fixed-output version (this 3.3 V part); on the adjustable version this pin is the ADJ pin, with adjust current of 60 to 120 µA typical per the electrical characteristics."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output voltage; 3.3 V nominal for LM1117-3.3, with 2% accuracy for fixed-voltage versions and 1.2 V dropout at 1 A."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated input supply; recommended input voltage is 15 V maximum and the absolute maximum input voltage is 20 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 TO-252 pin mapping comes from the shared pinout table on page 5, which covers TO-220/TO-263/TO-2; Pin 1 is labelled 'GND/ADJ' with I/O '--/O'. It is ground for fixed versions and ADJ for the adjusta; The package is named TO-252-2 (two leads) but the pinout lists three leads plus a tab. The pinout us",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0486,
        "at": "2026-10-17T08:59:27"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8609178867836215296",
        "pages": 12,
        "sha256": "2486968a9dcfb2fd",
        "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": [
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        "file": "lm1117mdt-3-3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          2.32
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm1117mdt-3-3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d04677613c8c1dd821b9f2ba2ce5152f4c8cc1bdf8ab9cf599d0de620a887f4e",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "TO-252",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2486968a9dcfb2fdc76817b34d8b98c4cc2372155a97a29ebf33b06d72dfc9a6",
      "rows": [
        {
          "name": "Output voltage (LM1117-3.3, 25°C pair, IOUT=10mA)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 3.267,
          "typ": 3.3,
          "max": 3.333,
          "conditions": "IOUT=10mA, VIN=5V, TJ=25℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (LM1117-3.3, full range)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 3.235,
          "typ": 3.3,
          "max": 3.365,
          "conditions": "IOUT=10mA, VIN=5V,TJ=25℃, 0≤IOUT≤1A, 4.75V≤VIN≤10V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range (absolute maximum table)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering 10 s)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering 10 s, TO-252/SOP-8/DFN package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD capability",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 2000,
          "typ": null,
          "max": null,
          "conditions": "Minimum value as printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range (recommended)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "Rline",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 3,
          "max": 7,
          "conditions": "VINMIN ≤VIN≤ 12V, VOUT=Fixed/Adj, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "Rload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 6,
          "max": 12,
          "conditions": "10mA≤IOUT≤ 1A, VOUT=Fixed/Adj",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage at 100mA",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": 1.2,
          "conditions": "IOUT=100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage at 500mA",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.05,
          "max": 1.25,
          "conditions": "IOUT=500mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage at 1A",
          "symbol": "Vdrop",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.1,
          "max": 1.3,
          "conditions": "IOUT=1A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "4.25V≤VIN≤ 6.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": 75,
          "max": null,
          "conditions": "fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current",
          "symbol": "Iadj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 60,
          "max": 120,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjust pin current change",
          "symbol": "Iadj",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.2,
          "max": 5,
          "conditions": "0≤ IOUT≤1A, 1.4V ≤VIN-VOUT≤10V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "Ilimit",
          "kind": "electrical",
          "unit": "A",
          "min": 1.2,
          "typ": 1.4,
          "max": 1.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient (no heatsink)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "TO-252-2, 无散热片 (no heatsink)",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "LM1117MDT-3.3 (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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