LT3971EMSE#TRPBF

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  "slug": "lt3971emse-trpbf",
  "title": "LT3971EMSE#TRPBF",
  "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",
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    "mpn": "LT3971EMSE#TRPBF",
    "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/3971fd.pdf",
    "parts": {
      "symbol": "lt3971emse-trpbf.kicad_sym",
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    "distributor_links": {
      "lcsc": "C671767",
      "digikey": "LT3971EMSE#TRPBFTR-ND",
      "mouser": "584-LT3971EMSE#TRPBF"
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        "pn": "584-LT3971EMSE#TRPBF",
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    },
    "pins": [
      {
        "number": "1",
        "name": "BD",
        "type": "passive",
        "description": "Anode of the boost diode, normally connected to the output, with BD voltage rated to 30V and boost diode current rated to 1A."
      },
      {
        "number": "2",
        "name": "BOOST",
        "type": "power_in",
        "description": "Provides a drive voltage higher than VIN to the internal NPN power switch, with BOOST pin voltage rated to 55V and no more than 30V above the SW pin."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Output of the internal power switch, connected to the inductor, catch diode and boost capacitor."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Supplies the internal circuitry and power switch over the 4.3V to 38V input range and must be locally bypassed."
      },
      {
        "number": "5",
        "name": "EN",
        "type": "input",
        "description": "Enable pin with a 1V threshold (1.005V rising, 0.975V falling) that shuts the part down when low; the threshold is accurate only when VIN is above 4.3V, and it is rated to 38V."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Regulates to 1.19V, with the feedback resistor divider tap connected here and a phase-lead capacitor (typically 10pF) connected between FB and VOUT."
      },
      {
        "number": "7",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start capacitor pin that slowly ramps the peak current limit at start-up; a 100k series resistor is required for VIN above 25V, and the pin is rated to 6V."
      },
      {
        "number": "8",
        "name": "RT",
        "type": "passive",
        "description": "A resistor tied to ground sets the switching frequency over the 200kHz to 2MHz range, and the pin is rated to 6V."
      },
      {
        "number": "9",
        "name": "PG",
        "type": "output",
        "description": "Open-drain power good output that stays low until FB is within 9% of the final regulation voltage, with PG voltage rated to 30V."
      },
      {
        "number": "10",
        "name": "SYNC",
        "type": "input",
        "description": "External clock synchronization input; grounding it selects low-ripple Burst Mode operation at low loads, and the pin is rated to 6V."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground exposed pad that must be soldered to the PCB."
      }
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        "at": "2026-10-28T15:46:18"
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        "pages": 28,
        "sha256": "cf769206b11377dd",
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      "Package": "MSOP-10-EP",
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        {
          "name": "Minimum Switch On Time",
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          "conditions": "ISW = 1A",
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          "name": "LT3971 PG Threshold Offset from VFB",
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          "conditions": "VPG = 3V",
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          "name": "PG Sink Current",
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          "name": "SS Source Current",
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          "conditions": "VSS = 1V",
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