main
Ray Set visibility: public 91006d1 17d ago
{
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  "type": "component",
  "slug": "lr8103a-t18",
  "title": "LR8103A-T18",
  "brief": "LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; all voltages in the datasheet are specified relative to GND."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated output, fixed at 1.8V for the LR8103A-T18 with 300mA typical output current; short-circuit protection engages below 0.7V with a 30mA typical limit."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply, rated 6.5V maximum for regulation (absolute maximum 9V); a input bypass capacitor of at least 1uF ceramic is recommended."
      }
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      "factory_chain": {
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        "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 SOT23-3L top-view drawing text is garbled in extraction: the labels GND, VOUT and VIN and the nu; The LR8103A-T18 is listed as 1.8V in the ordering table, but the fixed-voltage 1.8V statement in the"
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        "seat": "z = 0",
        "extents_mm": [
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        "checked": "2026-10-16",
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  "metadata": {
    "specs": {
      "Manufacturer": "LR",
      "Package": "SOT-23-3L",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
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    "characteristics": {
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          "name": "Maximum input supply voltage",
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          "typ": null,
          "max": 9,
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        {
          "name": "Maximum output current",
          "symbol": "IOUT",
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          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 450,
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        {
          "name": "Power dissipation",
          "symbol": "PD",
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          "unit": "mW",
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        {
          "name": "Operating temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -10,
          "typ": null,
          "max": 85,
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        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "H.B.M POS/NEG",
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        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "ISS=1uA",
          "source_page": 4,
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        },
        {
          "name": "Output voltage accuracy (printed ±1%)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=VCE=VOUT+1V, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Enable voltage",
          "symbol": "VCE",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": 1.2,
          "conditions": "VIN=2.2V, IOUT=1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "VOUT+1V≤VIN≤6.5V, VIN=VCE, IOUT=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "VIN=VCE=VOUT+1V, 1mA≤IOUT≤100mA",
          "source_page": 4,
          "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": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.8,
          "max": 1,
          "conditions": "VIN=VCE=VOUT+1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage temperature coefficient",
          "symbol": "ΔVOUT/(ΔTa*VOUT)",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": -100,
          "typ": 50,
          "max": 100,
          "conditions": "VIN=VCE=VOUT+1V, IOUT=10mA, -40℃≤Ta≤85℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature (absolute maximum rating)",
          "symbol": "TJ(MAX)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Recommended maximum junction temperature for reliability",
          "symbol": "TJ(MAX)",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "Normal operation",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input capacitor (recommended minimum)",
          "symbol": "CIN",
          "kind": "recommended_operating",
          "unit": "uF",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "Ceramic, see section 9.1",
          "source_page": 6,
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        {
          "name": "Output capacitor (recommended minimum)",
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          "kind": "recommended_operating",
          "unit": "uF",
          "min": 1,
          "typ": null,
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        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "SOT23-3L",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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