LTC3440EMS#TRPBF

{
  "slug": "ltc3440ems-trpbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ltc3440ems#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ltc3440ems-trpbf.kicad_sym",
    "ltc3440ems-trpbf.kicad_mod",
    "ltc3440ems-trpbf.glb",
    "ltc3440ems-trpbf.step",
    "ltc3440ems-trpbf.lbr",
    "docs/hero.png",
    "docs/ltc3440ems-trpbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ltc3440ems-trpbf-hero.glb",
    "ltc3440ems-trpbf-hero.overlay.json",
    "ltc3440ems-trpbf-etched.glb"
  ],
  "component": {
    "mpn": "LTC3440EMS#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886303856975872",
    "parts": {
      "symbol": "ltc3440ems-trpbf.kicad_sym",
      "footprint": "ltc3440ems-trpbf.kicad_mod",
      "model_3d": "ltc3440ems-trpbf-hero.glb",
      "model_3d_plain": "ltc3440ems-trpbf-etched.glb",
      "model_3d_step": "ltc3440ems-trpbf-etched.step",
      "model_3d_step_plain": "ltc3440ems-trpbf.step",
      "lbr": "ltc3440ems-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C684780",
      "digikey": "LTC3440EMS#TRPBFTR-ND",
      "mouser": "584-LTC3440EMS#TRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T01:47:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LTC3440EMS#TRPBFTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LTC3440EMS#TRPBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RT",
        "type": "passive",
        "description": "Timing resistor pin that programs the oscillator frequency over a 300kHz to 2MHz range."
      },
      {
        "number": "2",
        "name": "MODE/SYNC",
        "type": "input",
        "description": "Selects Burst Mode operation when driven high or fixed-frequency operation when driven low, and accepts an external clock at twice the switching frequency with a 100ns to 2µs pulse width for synchronization."
      },
      {
        "number": "3",
        "name": "SW1",
        "type": "passive",
        "description": "Switch node where internal switches A and B connect; the inductor is connected from SW1 to SW2, and an optional Schottky diode may be connected from SW1 to ground."
      },
      {
        "number": "4",
        "name": "SW2",
        "type": "passive",
        "description": "Switch node where internal switches C and D connect; for output voltages above 4.3V a Schottky diode is required from SW2 to VOUT."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Signal and power ground for the IC."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "power_out",
        "description": "Output of the synchronous rectifier, with a filter capacitor from VOUT to GND; output is adjustable from 2.5V to 5.5V."
      },
      {
        "number": "7",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin and internal VCC for the IC, operating from 2.5V to 5.5V and requiring a ceramic bypass capacitor placed close to VIN and GND."
      },
      {
        "number": "8",
        "name": "SHDN/SS",
        "type": "input",
        "description": "Grounding this pin shuts down the IC, a level above 1.5V enables it, and a level above 2.5V keeps the error amp from being clamped during soft-start, with an RC here limiting the VC rise time."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin connected to the resistor divider tap, with a typical reference of 1.22V that sets an output adjustable from 2.5V to 5.5V."
      },
      {
        "number": "10",
        "name": "VC",
        "type": "output",
        "description": "Error amplifier output, to which a frequency compensation network is connected from VC to FB to compensate the loop."
      }
    ],
    "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": [
          "extractor flagged: The MS (10-lead MSOP) pin numbering is taken from the top-view drawing on page 2 and matches the pin; Pin types for SW1, SW2 and RT, and the VC pin, are not stated as ERC classes in the datasheet. They ; The datasheet's RT and SW pin descriptions give formulas and conditions (for example f_OSC and RT eq"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0398,
        "at": "2026-10-18T01:45:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886303856975872",
        "pages": 22,
        "sha256": "284b323962287c76",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ltc3440ems-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ltc3440ems-trpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "11a34e288768ed777f98f3f8a369242a9122af6f5515a21ef801c1fab4da3ec4",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}