LT8301IS5#WTRPBF

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  "slug": "lt8301is5-wtrpbf",
  "title": "LT8301IS5#WTRPBF",
  "brief": "Analog Devices DC-DC Converters, TSOT-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",
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  "component": {
    "mpn": "LT8301IS5#WTRPBF",
    "manufacturer": "Analog Devices",
    "package": "TSOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952471515639808",
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    "distributor_links": {
      "lcsc": "C1881043",
      "digikey": "505-LT8301IS5#WTRPBFTR-ND",
      "mouser": "584-LT8301IS5#WTRPBF"
    },
    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
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      "mouser": {
        "pn": "584-LT8301IS5#WTRPBF",
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        "lifecycle": "Restricted Availability"
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    "pins": [
      {
        "number": "1",
        "name": "EN/UVLO",
        "type": "input",
        "description": "Enable/undervoltage lockout pin: pull it below 0.2V to shut down the LT8301, it has an accurate 1.228V threshold for programming VIN UVLO with a resistor divider, and it should be tied directly to VIN if neither function is used."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be tied directly to the local ground plane."
      },
      {
        "number": "3",
        "name": "RFB",
        "type": "input",
        "description": "Input for the external feedback resistor, connected from this pin to the transformer primary SW pin, where the resistor ratio to an internal 10kΩ resistor and a trimmed 1.0V reference sets the output voltage, and trace area at this pin should be minimized."
      },
      {
        "number": "4",
        "name": "SW",
        "type": "output",
        "description": "Drain of the internal 65V DMOS power switch, where trace area should be minimized to reduce EMI and voltage spikes."
      },
      {
        "number": "5",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin that powers the internal circuitry and serves as the reference for the RFB feedback circuit, and it should be locally bypassed to ground with a capacitor."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
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        "primary_model": "claude-haiku-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet calls SW the drain of the internal power switch and does not give a KiCad ERC class; '; The datasheet gives no electrical type for RFB; 'input' was chosen because it is a sensing/feedback ; The datasheet excerpt provided covers 6 of 24 pages. The pin list comes from the page 2 pin configur"
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        "pages_sent": 6,
        "cost_usd": 0.0387,
        "at": "2026-10-20T09:34:56"
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        "pages": 24,
        "sha256": "ccd1820493fb3148",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "TSOT-23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ccd1820493fb3148d4641e0eaf03dfce82b4e3126218cc9e98669882c578eb0e",
      "rows": [
        {
          "name": "VIN Input Voltage Range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 42,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Quiescent Current, Sleep Mode (Switch Off)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.8,
          "max": 2,
          "conditions": "VEN/UVLO = 0.2V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Quiescent Current, Active Mode (Switch On)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": 100,
          "typ": 215,
          "max": 350,
          "conditions": "VEN/UVLO = 1.1V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO Shutdown Threshold For Lowest Off IQ",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": null,
          "max": 0.55,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO Enable Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.204,
          "typ": 1.228,
          "max": 1.248,
          "conditions": "Falling",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO Hysteresis Current",
          "symbol": "IHYS",
          "kind": "electrical",
          "unit": "µA",
          "min": -0.1,
          "typ": 0,
          "max": 0.1,
          "conditions": "VEN/UVLO = 0.2V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO Hysteresis Current",
          "symbol": "IHYS",
          "kind": "electrical",
          "unit": "µA",
          "min": 2.2,
          "typ": 2.5,
          "max": 2.8,
          "conditions": "VEN/UVLO = 1.1V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum Switching Frequency",
          "symbol": "fMIN",
          "kind": "electrical",
          "unit": "kHz",
          "min": 9.4,
          "typ": 10,
          "max": 10.6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum SW Current Limit",
          "symbol": "ISW(MAX)",
          "kind": "electrical",
          "unit": "A",
          "min": 1.2,
          "typ": 1.375,
          "max": 1.55,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum SW Current Limit",
          "symbol": "ISW(MIN)",
          "kind": "electrical",
          "unit": "A",
          "min": 0.22,
          "typ": 0.29,
          "max": 0.36,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch Leakage Current",
          "symbol": "ILKG",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "VIN = 42V, VSW = 65V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RFB Regulation Current",
          "symbol": "IRFB",
          "kind": "electrical",
          "unit": "µA",
          "min": 97.5,
          "typ": 100,
          "max": 102.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RFB Regulation Current Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.02,
          "max": 0.1,
          "conditions": "2.7V ≤ VIN ≤ 42V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SW pin voltage (drain of internal DMOS switch)",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 65,
          "conditions": "Note 2: rated for transients",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN pin voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 42,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current into RFB",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "LT8301I",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "5-lead plastic TSOT-23 (S5) package",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
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