main
Ray Set visibility: public 3e93048 12d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lp2981a-33dbvr-hxy",
  "title": "LP2981A-33DBVR-HXY",
  "brief": "HXY MOSFET Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. 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)",
    "lp2981a-33dbvr-hxy",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP2981A-33DBVR-HXY",
    "manufacturer": "HXY MOSFET",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e5aafc94187e4bfccbb4c48c2756fa15.pdf",
    "parts": {
      "symbol": "lp2981a-33dbvr-hxy.kicad_sym",
      "footprint": "lp2981a-33dbvr-hxy.kicad_mod",
      "model_3d": "lp2981a-33dbvr-hxy-hero.glb",
      "model_3d_plain": "lp2981a-33dbvr-hxy-etched.glb",
      "model_3d_step": "lp2981a-33dbvr-hxy-etched.step",
      "model_3d_step_plain": "lp2981a-33dbvr-hxy.step",
      "lbr": "lp2981a-33dbvr-hxy.lbr"
    },
    "distributor_links": {
      "lcsc": "C42432880"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:39:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input; input voltage up to 24V (absolute max 32V), with a ceramic bypass capacitor of at least 1µF recommended."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to it."
      },
      {
        "number": "3",
        "name": "CE",
        "type": "input",
        "description": "Chip enable input; enable turn-on voltage is 0.7V min to 1.2V max, and VCE=0V gives shutdown with ISHD of ±1µA max."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection, leave floating."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output with ±1% accuracy, 300mA typical output current, and an output capacitor of at least 1µF required."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-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 in Chinese and has no pin-function table. Pin names come from the pinout and functi; The datasheet contradicts itself on current limits. Absolute max output current is 420mA, the electr; The MPN suffix -HXY is the manufacturer's tag. The datasheet lists LP2981A-xxDBVR in SOT-23-5L with "
        ],
        "pages_sent": 8,
        "cost_usd": 0.0592,
        "at": "2026-10-26T18:39:38"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e5aafc94187e4bfccbb4c48c2756fa15.pdf",
        "pages": 8,
        "sha256": "c5cf65589b92b1ca",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lp2981a-33dbvr-hxy.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp2981a-33dbvr-hxy-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2df98899c50dca94e7ce860304ed05ff251a46a401ef877cc71b5979183f80fa",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HXY MOSFET",
      "Package": "SOT-23-5L",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c5cf65589b92b1caf0a0fb45033720d7b01b55c9b2b5e77620b97026942e52dc",
      "rows": [
        {
          "name": "Output voltage accuracy",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=VOUT+1V, IOUT=10mA; printed VOUT*0.99 to VOUT*1.01",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 24,
          "conditions": "ISS=5uA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Enable turn-on voltage",
          "symbol": "VCE",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": 1.2,
          "conditions": "VIN=2.2V, IOUT=1mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VOUT+1V≤VIN≤24V, IOUT=5mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VIN=VOUT+1V, 1mA≤IOUT≤100mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "mV",
          "min": 130,
          "typ": 150,
          "max": 170,
          "conditions": "IOUT=50mA, ΔVOUT=±1%*VOUT",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDrop",
          "kind": "electrical",
          "unit": "mV",
          "min": 230,
          "typ": 250,
          "max": 270,
          "conditions": "IOUT150mA, ΔVOUT=±1%*VOUT",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISHD",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=VOUT+1V, VCE=0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature coefficient",
          "symbol": "ΔVOUT/(ΔTa*VOUT)",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -100,
          "typ": 50,
          "max": 100,
          "conditions": "VIN=VOUT+1V, IOUT=10mA, -40℃≤Ta≤85℃; typ printed ±50",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum input supply voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IOUT",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 420,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -3000,
          "typ": null,
          "max": 3000,
          "conditions": "H.B.M POS/NEG",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature",
          "symbol": "TJ(MAX)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "normal operation recommended not above 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "SOT-23-5L",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "VIN=VOUT+1V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "VIN=VOUT+1V, IOUT=10mA, f=100Hz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "VIN=VOUT+1V, IOUT=10mA, f=1kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "VIN=VOUT+1V, IOUT=10mA, f=10kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "VIN=VOUT+1V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISCP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 85,
          "max": null,
          "conditions": "VOUT=GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent protection",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "VIN=VCE=VOUT+1V",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lp2981a-33dbvr-hxy"
  ],
  "discovery_pitch": "LP2981A-33DBVR-HXY (HXY MOSFET) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lp2981a-33dbvr-hxy.kicad_sym",
    "lp2981a-33dbvr-hxy.kicad_mod",
    "lp2981a-33dbvr-hxy.glb",
    "lp2981a-33dbvr-hxy.step",
    "lp2981a-33dbvr-hxy.lbr",
    "docs/hero.png",
    "docs/lp2981a-33dbvr-hxy-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lp2981a-33dbvr-hxy-hero.glb",
    "lp2981a-33dbvr-hxy-hero.overlay.json",
    "lp2981a-33dbvr-hxy-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}