LT3481EMSE#PBF

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  "slug": "lt3481emse-pbf",
  "title": "LT3481EMSE#PBF",
  "brief": "Analog Devices DC-DC Converters, MSOP-10-EP. 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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    "power management ics",
    "lt3481emse#pbf",
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  "component": {
    "mpn": "LT3481EMSE#PBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-10-EP",
    "pin_count": 11,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/3481fc.pdf",
    "parts": {
      "symbol": "lt3481emse-pbf.kicad_sym",
      "footprint": "lt3481emse-pbf.kicad_mod",
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      "model_3d_step": "lt3481emse-pbf-etched.step",
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      "lbr": "lt3481emse-pbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C462680",
      "digikey": "505-LT3481EMSE#PBF-ND",
      "mouser": "584-LT3481EMSE#PBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T01:42:40Z",
      "source": "Component Ocean /api/assign-pns",
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        "status": "found"
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      "mouser": {
        "pn": "584-LT3481EMSE#PBF",
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    },
    "pins": [
      {
        "number": "1",
        "name": "BD",
        "type": "passive",
        "description": "This pin connects to the anode of the boost Schottky diode."
      },
      {
        "number": "2",
        "name": "BOOST",
        "type": "power_in",
        "description": "This pin provides a drive voltage, higher than the input voltage, to the internal bipolar NPN power switch."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "This pin is the output of the internal power switch and connects to the inductor, catch diode and boost capacitor."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "This pin supplies current to the LT3481's internal regulator and internal power switch and must be locally bypassed."
      },
      {
        "number": "5",
        "name": "RUN/SS",
        "type": "input",
        "description": "Tie this pin to ground to shut down the LT3481, tie it to 2.3V or more for normal operation, and tie it to VIN if shutdown is not used; it also sets the soft-start ramp."
      },
      {
        "number": "6",
        "name": "PG",
        "type": "output",
        "description": "This pin is the open-collector output of an internal comparator that remains low until FB is within 10% of the final regulation voltage, and is valid when VIN is above 3.5V and RUN/SS is high."
      },
      {
        "number": "7",
        "name": "BIAS",
        "type": "power_in",
        "description": "This pin supplies current to the internal regulator and should be tied to the lowest available voltage source above 3V (typically VOUT)."
      },
      {
        "number": "8",
        "name": "FB",
        "type": "input",
        "description": "The LT3481 regulates this pin to 1.265V, and the feedback resistor divider tap connects here."
      },
      {
        "number": "9",
        "name": "VC",
        "type": "passive",
        "description": "This pin is the output of the internal error amplifier that controls peak switch current and requires an RC network to ground for loop compensation."
      },
      {
        "number": "10",
        "name": "RT",
        "type": "input",
        "description": "This oscillator resistor input sets the switching frequency through a resistor connected to ground."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "The exposed pad is ground and must be soldered to the PCB."
      }
    ],
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        "at": "2026-10-29T01:42:17"
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        "pages": 24,
        "sha256": "10dc0fc8e1493dbf",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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      "Manufacturer": "Analog Devices",
      "Package": "MSOP-10-EP",
      "Category": "Power Management ICs",
      "Pins": "11"
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          "name": "Feedback Voltage",
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        {
          "name": "FB Pin Bias Current",
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          "unit": "nA",
          "min": null,
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          "conditions": "VFB = 1.25V, VC = 0.4V ● full operating temperature range; Note 3",
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        {
          "name": "FB Voltage Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.002,
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          "conditions": "4V < VIN < 34V",
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          "name": "Switching Frequency",
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          "conditions": "RT = 8.66k",
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        {
          "name": "Switching Frequency",
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          "unit": "kHz",
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        {
          "name": "Minimum Switch Off-Time",
          "symbol": "",
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        {
          "name": "Switch Current Limit",
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          "conditions": "Duty Cycle = 5%",
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        {
          "name": "Switch VCESAT",
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        {
          "name": "Boost Schottky Reverse Leakage",
          "symbol": "",
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          "unit": "μA",
          "min": null,
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          "name": "Minimum Boost Voltage",
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          "name": "BOOST Pin Current",
          "symbol": "",
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          "unit": "mA",
          "min": null,
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          "max": 35,
          "conditions": "ISW = 1A",
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        {
          "name": "RUN/SS Pin Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
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          "conditions": "VRUN/SS = 2.5V",
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          "name": "RUN/SS Input Voltage High",
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          "name": "PG Hysteresis",
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          "name": "PG Leakage",
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          "name": "PG Sink Current",
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          "conditions": "VPG = 3V ● full operating temperature range",
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          "name": "BOOST Pin Above SW Pin",
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          "name": "Maximum Junction Temperature",
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          "name": "Lead Temperature (Soldering, 10 sec)",
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          "conditions": "Wide input range (36V maximum)",
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        {
          "name": "Output Voltage Range",
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          "name": "Maximum Output Current",
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        {
          "name": "Junction-to-Ambient Thermal Resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
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