main
Ray Set visibility: public 83ea571 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ltp3559-33rxt4",
  "title": "LTP3559-33RXT4",
  "brief": "Linearin Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. 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)",
    "ltp3559-33rxt4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LTP3559-33RXT4",
    "manufacturer": "Linearin",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757212255853121536",
    "parts": {
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      "lbr": "ltp3559-33rxt4.lbr"
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    "distributor_links": {
      "lcsc": "C3035461"
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    "distributor_check": {
      "checked_at": "2026-10-17T21:18:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Output pin of the LDO; absolute maximum rating for OUT to GND is -0.3 to 6 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, the reference for the input and output."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Supply input pin; absolute maximum rating for IN to GND is -0.3 to 48 V."
      }
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    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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 datasheet gives two SOT89-3 pinouts. The pin function table lists SOT89-3 as GND=1, IN=2, OUT=3,; The page 2 pin diagram text is garbled and labels the SOT89-3 drawing as GND 2, IN 3, OUT 1, which m"
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        "pages_sent": 12,
        "cost_usd": 0.0397,
        "at": "2026-10-17T21:17:21"
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        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757212255853121536",
        "pages": 12,
        "sha256": "4ce104044a30ec68",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "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": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "ltp3559-33rxt4-etched.step",
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        "sha256": "cfb2b119e86cda7b45ffcf8230142fb652e9c1b20cbdad6fe9ed94f18202abee",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Linearin",
      "Package": "SOT-89-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4ce104044a30ec68c55ee680869f42dd6ed37e17010259456e6ab26b2d3b7a9d",
      "rows": [
        {
          "name": "Line Regulation",
          "symbol": "RegLINE",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.04,
          "conditions": "2.5 V ≤ VIN ≤ 36 V, IOUT = 10 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "RegLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "1 mA ≤ IOUT ≤ 300 mA, VIN = VOUT + 2 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum Output Current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "VIN = VOUT +2 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "IOUT = 0 mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Standby Current",
          "symbol": "IQ_OFF",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VEN = 0 V, TA = 25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Threshold Voltage (high)",
          "symbol": "VENH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": null,
          "max": null,
          "conditions": "EN Input Voltage “H”",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Threshold Voltage (low)",
          "symbol": "VENL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "EN Input Voltage “L”",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN Pin Current",
          "symbol": "IEN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VEN = 0 to 36V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rejection Ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "VIN = VOUT + 1 V, IOUT = 20 mA, f = 1 kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μVrms",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VIN = VOUT + 2 V, IOUT = 1 mA, f = 10 Hz to 100 KHz, (VOUT = 3 V) COUT = 1 μF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 155,
          "max": null,
          "conditions": "Temperature Increasing from TA=+25°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "TSDH",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "Temperature Falling From TSD",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy (worst case)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "over all load, line, process, and temperature variations",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Input Voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input capacitor (recommended)",
          "symbol": "CIN",
          "kind": "recommended_operating",
          "unit": "μF",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "ceramic capacitor between VIN and GND; may be increased without limit",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor (recommended)",
          "symbol": "COUT",
          "kind": "recommended_operating",
          "unit": "μF",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "ceramic output capacitor; temperature characteristics X7R or X5R",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output capacitor ESR (recommended)",
          "symbol": "ESR",
          "kind": "recommended_operating",
          "unit": "mΩ",
          "min": 5,
          "typ": null,
          "max": 100,
          "conditions": "equivalent series resistance of output capacitor",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "IN pin to GND pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "OUT pin to GND pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10 sec)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10 sec",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (HBM)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "ESDA/JEDEC JS-001-2017",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (Junction to Ambient), SOT89-3",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 135,
          "conditions": "Junction to ambient, SOT89-3 package",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "LTP3559-33RXT4 (Linearin) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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