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Ray Set visibility: public ba13046 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ltc3440ems-trpbf",
  "title": "LTC3440EMS#TRPBF",
  "brief": "Analog Devices DC-DC Converters, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "ltc3440ems#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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"
      }
    },
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      {
        "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
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        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "MSOP-10",
      "Category": "Power Management (PMIC)",
      "Pins": "10"
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    "characteristics": {
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      "source": "datasheet",
      "datasheet_sha256": "284b323962287c76b4dc86e2a3ff69222df0a5b428b33a9acdb116d813110a21",
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          "name": "Input Start-Up Voltage",
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          "name": "Quiescent Current, Burst Mode Operation",
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          "name": "Quiescent Current, Active",
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          "name": "NMOS Switch Leakage",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
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          "conditions": "Switches B and C",
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        {
          "name": "PMOS Switch Leakage",
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          "conditions": "Switches A and D",
          "source_page": 3,
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        },
        {
          "name": "Maximum Duty Cycle Boost",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 55,
          "typ": 75,
          "max": null,
          "conditions": "Boost (% Switch C On)",
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        },
        {
          "name": "Frequency Accuracy",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.8,
          "typ": 1,
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          "name": "MODE/SYNC Threshold",
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        {
          "name": "MODE/SYNC Input Current",
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        {
          "name": "SHDN/SS Threshold, When IC is Enabled",
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          "name": "Input Current Limit",
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          "name": "Maximum Duty Cycle Buck",
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          "kind": "electrical",
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          "typ": 100,
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          "conditions": "Buck (% Switch A On)",
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        {
          "name": "Minimum Duty Cycle",
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          "kind": "electrical",
          "unit": "%",
          "min": null,
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        {
          "name": "NMOS Switch On Resistance",
          "symbol": "",
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          "min": null,
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          "max": null,
          "conditions": "Switches B and C",
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        {
          "name": "PMOS Switch On Resistance",
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        {
          "name": "Error Amp AVOL",
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          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 90,
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          "source_page": 3,
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        {
          "name": "Error Amp Source Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 15,
          "max": null,
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        },
        {
          "name": "Error Amp Sink Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 380,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SHDN/SS Threshold, When EA is at Maximum Boost Duty Cycle",
          "symbol": "",
          "kind": "electrical",
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          "typ": 2.2,
          "max": null,
          "conditions": "When EA is at Maximum Boost Duty Cycle",
          "source_page": 3,
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        },
        {
          "name": "VIN, VOUT Voltage",
          "symbol": "VIN, VOUT",
          "kind": "absolute_maximum",
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          "min": -0.3,
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        {
          "name": "SW1, SW2 Voltage",
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          "kind": "absolute_maximum",
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        {
          "name": "VC, RT, FB, SHDN/SS, MODE/SYNC Voltage",
          "symbol": "",
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        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Note 2",
          "source_page": 2,
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        {
          "name": "Storage Temperature Range",
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          "min": -65,
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          "max": 125,
          "conditions": "",
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        {
          "name": "Lead Temperature (Soldering)",
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          "conditions": "Soldering, 10 sec",
          "source_page": 2,
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        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJMAX",
          "kind": "thermal",
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          "conditions": "",
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        },
        {
          "name": "Thermal Resistance, Junction to Ambient (MS package)",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "1 layer board",
          "source_page": 2,
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        {
          "name": "Thermal Resistance, Junction to Ambient (MS package)",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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          "source_page": 2,
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        {
          "name": "Thermal Resistance, Junction to Case (MS package)",
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          "kind": "thermal",
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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