LP3982S-28B5F

{
  "schema_version": 1,
  "type": "component",
  "slug": "lp3982s-28b5f",
  "title": "LP3982S-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)",
    "lp3982s-28b5f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LP3982S-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/03875e2878c0b95910d96ab1a8ed7dcc.pdf",
    "parts": {
      "symbol": "lp3982s-28b5f.kicad_sym",
      "footprint": "lp3982s-28b5f.kicad_mod",
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      "lbr": "lp3982s-28b5f.lbr"
    },
    "distributor_links": {
      "lcsc": "C47345735"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T15:17:48Z",
      "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 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": "Output pin that must be bypassed with a 1μF or greater ceramic capacitor from this pin 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 'NC' with a single pin number (4). Because DFN-4 pin 4 is already VI"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0627,
        "at": "2026-10-18T15:14:40"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/03875e2878c0b95910d96ab1a8ed7dcc.pdf",
        "pages": 18,
        "sha256": "fcd4a32c06506e21",
        "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"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "LOWPOWER",
      "Package": "SOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "appearance": {
      "contacts": {
        "quote": "output capacitors, and to the LDO ground pin as close to each other as possible with a wide and component￾side copper surface. The use of vias and long traces to",
        "page": 12,
        "doc": "ds.pdf",
        "material": "copper"
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          "name": "Input Voltage Operation Range",
          "symbol": "VIN",
          "kind": "electrical",
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          "min": 2.2,
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          "max": 5.5,
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        {
          "name": "Input Voltage (recommended operating)",
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          "min": 2.2,
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        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Ambient Temperature Range",
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          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        {
          "name": "VIN Pin to GND",
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          "typ": null,
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        {
          "name": "VOUT, EN Pin to GND",
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        {
          "name": "Maximum Junction Temperature",
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          "unit": "℃",
          "min": null,
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        {
          "name": "Operating Ambient Temperature Range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "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": "HBM",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
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        },
        {
          "name": "ESD Charged Device Model",
          "symbol": "CDM",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
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        },
        {
          "name": "Thermal Resistance (SOT23-5, θJA)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "2S2P JEDEC PCB, ambient temperature < 25°C",
          "source_page": 4,
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        },
        {
          "name": "Output Voltage Accuracy (2.8V)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 2.772,
          "typ": 2.8,
          "max": 2.828,
          "conditions": "IOUT=1mA",
          "source_page": 5,
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        },
        {
          "name": "Output Voltage Load Regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 16,
          "max": 28,
          "conditions": "IOUT from 1mA to 300mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max Load Current",
          "symbol": "IOUT_MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "VEN=VIN",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Current Limit",
          "symbol": "ILIMIT",
          "kind": "electrical",
          "unit": "mA",
          "min": 400,
          "typ": null,
          "max": 550,
          "conditions": "VEN=VIN",
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        },
        {
          "name": "Short Current",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "VEN=VIN, VOUT short to GND",
          "source_page": 5,
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        },
        {
          "name": "Dropout Voltage (2.8V)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "VOUT=2.8V, IOUT=300mA",
          "source_page": 5,
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        },
        {
          "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": "Inrush Current",
          "symbol": "IInrush",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "COUT=10μF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Line Regulation",
          "symbol": "ΔVOUT/(ΔVIN × VOUT)",
          "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": "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": "PSRR 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": "PSRR 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": "PSRR 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": "PSRR 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 (2.8V)",
          "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": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 6,
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        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "ΔTSD",
          "kind": "electrical",
          "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,
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        },
        {
          "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"
        }
      ]
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