main
Ray Set visibility: public 4c59377 6h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "lp3982h-28b5f",
  "title": "LP3982H-28B5F",
  "brief": "LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. 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)",
    "lp3982h-28b5f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP3982H-28B5F",
    "manufacturer": "LOWPOWER",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/97a53199cc25e0adbd5de01f77d6a567.pdf",
    "parts": {
      "symbol": "lp3982h-28b5f.kicad_sym",
      "footprint": "lp3982h-28b5f.kicad_mod",
      "model_3d": "lp3982h-28b5f-hero.glb",
      "model_3d_plain": "lp3982h-28b5f-etched.glb",
      "model_3d_step": "lp3982h-28b5f-etched.step",
      "model_3d_step_plain": "lp3982h-28b5f.step",
      "lbr": "lp3982h-28b5f.lbr"
    },
    "distributor_links": {
      "lcsc": "C47345749"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T15:59:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply input pin that must be closely decoupled to GND with a 1μF or greater ceramic capacitor placed as close to the pin as possible; input voltage range is 2.2V to 5.5V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable pin: driving EN over 1V turns on the regulator and driving EN below 0.4V puts it into shutdown mode."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output pin that must be bypassed with a 1μF or greater ceramic capacitor to ground, placed as close to the pin as possible."
      }
    ],
    "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 Description table lists the SOT23-5 pin number for VIN, GND, EN and VOUT, but the 'NC' row o; The datasheet pinout table gives both DFN-4 and SOT23-5 numbers; only the SOT23-5 column was used, a"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0568,
        "at": "2026-10-17T15:56:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/97a53199cc25e0adbd5de01f77d6a567.pdf",
        "pages": 18,
        "sha256": "fdcbfba8996262fb",
        "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": "lp3982h-28b5f.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": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lp3982h-28b5f-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "footprint_binding": "identity",
        "sha256": "08e2681ee423082ad1369e143527d5224a95d7763d8fe01a7823a4195d143dfc",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "LOWPOWER",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "appearance": {
      "contacts": {
        "quote": "practically possible to the respective LDO pins. Place ground return connections to the input and output capacitors, and to the LDO ground pin as close to each other as possible with a wide and compon",
        "page": 12,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "fdcbfba8996262fb1297469430a30abad014cbd17b4bbbf62b22fc07057e8a97"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "fdcbfba8996262fb1297469430a30abad014cbd17b4bbbf62b22fc07057e8a97",
      "rows": [
        {
          "name": "Input Voltage Operation Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Inrush Current",
          "symbol": "IInrush",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "COUT=10μF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 58,
          "max": null,
          "conditions": "IOUT=0mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "VEN=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Accuracy (2.8V variant)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 2.772,
          "typ": 2.8,
          "max": 2.828,
          "conditions": "IOUT=1mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": null,
          "conditions": "VIN=VOUT+0.5V~5.5V IOUT=1mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Load Regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 36,
          "max": 70,
          "conditions": "IOUT from 1mA to 600mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VOUT Temperature Coefficient",
          "symbol": "TCVOUT",
          "kind": "temperature_coefficient",
          "unit": "%/℃",
          "min": null,
          "typ": 0.01,
          "max": null,
          "conditions": "IOUT=1mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max Load Current",
          "symbol": "IOUT_MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "VEN=VIN",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Current Limit",
          "symbol": "ILIMIT",
          "kind": "electrical",
          "unit": "mA",
          "min": 800,
          "typ": null,
          "max": 1100,
          "conditions": "VEN=VIN",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Short Current",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 195,
          "max": null,
          "conditions": "VEN=VIN, VOUT short to GND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio at 100Hz",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "VIN=(VOUT+1V)DC+0.2VP-P, IOUT=20mA, VOUT=2.8V, f=100Hz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio at 1kHz",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "VIN=(VOUT+1V)DC+0.2VP-P, IOUT=20mA, VOUT=2.8V, f=1kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio at 10kHz",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "VIN=(VOUT+1V)DC+0.2VP-P, IOUT=20mA, VOUT=2.8V, f=10kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio at 100kHz",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "VIN=(VOUT+1V)DC+0.2VP-P, IOUT=20mA, VOUT=2.8V, f=100kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage (2.8V variant)",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μVRMS",
          "min": null,
          "typ": 42,
          "max": null,
          "conditions": "10Hz~100kHz, IOUT=20mA, VOUT=2.8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Threshold",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "ΔTSD",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VOUT Rise Time",
          "symbol": "trise",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "IOUT=0mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Auto-discharge On-Resistance",
          "symbol": "RDISC",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 850,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Logic High Voltage",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Logic Low Voltage",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "EN Input Current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "VEN=0 to 5.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VIN Pin to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VOUT, EN Pin to GND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Soldering Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "at leads, 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD Human Body Model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "HBM",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD Charged Device Model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "CDM",
          "source_page": 4,
          "source": "datasheet"
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          "kind": "recommended_operating",
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          "min": 2.2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Operating Junction Temperature Range",
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          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Ambient Temperature Range (recommended)",
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          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "LP3982H-28B5F (LOWPOWER) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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