LT3686IDD#PBF

{
  "slug": "lt3686idd-pbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices DC-DC Converters, DFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "lt3686idd#pbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "page.json",
    "README.md",
    "lt3686idd-pbf.kicad_sym",
    "lt3686idd-pbf.kicad_mod",
    "lt3686idd-pbf.glb",
    "lt3686idd-pbf.step",
    "lt3686idd-pbf.lbr",
    "docs/hero.png",
    "docs/lt3686idd-pbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lt3686idd-pbf-hero.glb",
    "lt3686idd-pbf-hero.overlay.json",
    "lt3686idd-pbf-etched.glb"
  ],
  "component": {
    "mpn": "LT3686IDD#PBF",
    "manufacturer": "Analog Devices",
    "package": "DFN-10-EP(3x3)",
    "pin_count": 11,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/3686fc.pdf",
    "parts": {
      "symbol": "lt3686idd-pbf.kicad_sym",
      "footprint": "lt3686idd-pbf.kicad_mod",
      "model_3d": "lt3686idd-pbf-hero.glb",
      "model_3d_plain": "lt3686idd-pbf-etched.glb",
      "model_3d_step": "lt3686idd-pbf-etched.step",
      "model_3d_step_plain": "lt3686idd-pbf.step",
      "lbr": "lt3686idd-pbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C671214",
      "digikey": "LT3686IDD#PBF-ND",
      "mouser": "584-LT3686IDD#PBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T15:48:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LT3686IDD#PBF-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LT3686IDD#PBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "The VIN pin supplies current to the internal regulator and internal power switch and must be locally bypassed; the input range is 3.6V to 37V."
      },
      {
        "number": "2",
        "name": "BD",
        "type": "passive",
        "description": "The BD pin supplies current to the internal Boost Schottky diode, should be tied to the output whenever possible, and regulates an active load when MODE is above 0.8V."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "The feedback pin regulates to 0.8V, with the output set by VOUT = 0.8(1 + R1/R2) and a recommended R2 of 10k."
      },
      {
        "number": "4",
        "name": "SS",
        "type": "input",
        "description": "The soft-start and tracking pin is charged by an internal 2µA source tied to a 2.5V reference, and feedback stops tracking at 0.8V; the pin should float if soft-start is not used."
      },
      {
        "number": "5",
        "name": "RT",
        "type": "input",
        "description": "The RT pin programs the oscillator frequency through a resistor selected from Table 1 in the applications section."
      },
      {
        "number": "6",
        "name": "EN/UVLO",
        "type": "input",
        "description": "The EN/UVLO pin starts up the device, shuts it down when pulled below 0.4V, provides a 1.27V UVLO threshold, and must not be driven above VIN."
      },
      {
        "number": "7",
        "name": "MODE",
        "type": "input",
        "description": "The MODE pin selects the BD active load, which is enabled when MODE is above 0.8V and disabled when tied to GND."
      },
      {
        "number": "8",
        "name": "BOOST",
        "type": "input",
        "description": "The BOOST pin provides a drive voltage higher than the input voltage to the internal NPN power switch."
      },
      {
        "number": "9",
        "name": "DA",
        "type": "passive",
        "description": "The DA pin is the connection for the catch diode (D1) anode."
      },
      {
        "number": "10",
        "name": "SW",
        "type": "output",
        "description": "The SW pin is the output of the internal power switch and connects to the inductor, catch diode and boost capacitor."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "The exposed pad GND pin is the only ground connection for the device and must be soldered to a large copper area to reduce thermal resistance."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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": [],
        "pages_sent": 6,
        "cost_usd": 0.0107,
        "at": "2026-10-28T15:48:22"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/3686fc.pdf",
        "pages": 28,
        "sha256": "21c973cf91b5f4e3",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 11,
        "described": 11,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "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": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt3686idd-pbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "checked": "2026-10-28",
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  }
}