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Ray Set visibility: public cd1e8d1 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "lt3757imse-trpbf",
  "title": "LT3757IMSE#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",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lt3757imse#trpbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LT3757IMSE#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-10-EP",
    "pin_count": 11,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907984768000000",
    "parts": {
      "symbol": "lt3757imse-trpbf.kicad_sym",
      "footprint": "lt3757imse-trpbf.kicad_mod",
      "model_3d": "lt3757imse-trpbf-hero.glb",
      "model_3d_plain": "lt3757imse-trpbf-etched.glb",
      "model_3d_step": "lt3757imse-trpbf-etched.step",
      "model_3d_step_plain": "lt3757imse-trpbf.step",
      "lbr": "lt3757imse-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C671481",
      "digikey": "LT3757IMSE#TRPBFTR-ND",
      "mouser": "584-LT3757IMSE#TRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T18:29:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LT3757IMSE#TRPBFTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LT3757IMSE#TRPBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VC",
        "type": "passive",
        "description": "Error amplifier compensation pin, used to stabilize the voltage loop with an external RC network."
      },
      {
        "number": "2",
        "name": "FBX",
        "type": "input",
        "description": "Positive and negative feedback pin that receives the feedback voltage from the external resistor divider across the output, and also modulates the frequency during start-up and fault conditions when FBX is close to GND."
      },
      {
        "number": "3",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin that modulates the VC clamp, with the soft-start interval set by an external capacitor, a 10µA typical pull-up to an internal 2.5V rail, and a reset to GND on SHDN/UVLO undervoltage, INTVCC undervoltage or overvoltage, or thermal lockout."
      },
      {
        "number": "4",
        "name": "RT",
        "type": "passive",
        "description": "Switching frequency adjustment pin, set by a resistor to GND (RT voltage 1.2V typical); do not leave this pin open."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "Frequency synchronization pin for an external clock, where RT must be chosen to program a switching frequency 20% slower than the SYNC pulse frequency, SYNC input must be tied to GND if unused, and SYNC is ignored when FBX is close to GND."
      },
      {
        "number": "6",
        "name": "SENSE",
        "type": "input",
        "description": "Current sense input for the control loop, which must be Kelvin connected to the positive terminal of the N-channel MOSFET source sense resistor, with the negative terminal returned to the GND plane close to the IC."
      },
      {
        "number": "7",
        "name": "GATE",
        "type": "output",
        "description": "N-channel MOSFET gate driver output that switches between INTVCC and GND and is driven to GND when the IC is shut down, in thermal lockout, or when INTVCC is above or below the OV or UV thresholds."
      },
      {
        "number": "8",
        "name": "INTVCC",
        "type": "power_out",
        "description": "Regulated supply for internal loads and the gate driver, regulated to 7.2V typical, which must be bypassed with at least 4.7µF placed close to the pin and may be connected directly to VIN only if VIN is less than 17.5V."
      },
      {
        "number": "9",
        "name": "SHDN/UVLO",
        "type": "input",
        "description": "Shutdown and undervoltage detect pin with an accurate 1.22V nominal falling threshold, which must be tied to 0.4V or less to disable the device and reduce VIN quiescent current below 1µA."
      },
      {
        "number": "10",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin with an operating range of 2.9V to 40V, which must be locally bypassed with a 0.22µF or larger capacitor placed close to the pin."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad is the ground connection and also serves as the negative terminal of the current sense resistor, and it must be soldered directly to the local ground plane."
      }
    ],
    "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: Pin 11 is the exposed thermal pad on the MSE package, not a numbered lead; it is listed as GND (powe; Source pinout is from the MSE (MSOP) package figure on PAGE 2 and the Pin Functions on PAGE 7; the M"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0531,
        "at": "2026-10-18T18:28:29"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588907984768000000",
        "pages": 36,
        "sha256": "1f145722dfa27e74",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "lt3757imse-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "18605eed706df7bb9674107abe7aa36e0ba163a09c21a2cee6c75cfa291b7937",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt3757imse-trpbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a2093d035f5809fd6c13b04ab1adce413e11374369ee115fc34ac260a8719618",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "MSOP-10-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1f145722dfa27e74f46f7d190005712ef37ef1817e0ec40726cfa28a51144eb7",
      "rows": [
        {
          "name": "VIN Operating Range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Shutdown IQ",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "SHDN/UVLO = 0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Shutdown IQ",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "SHDN/UVLO = 1.15V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Operating IQ",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.6,
          "max": 2.2,
          "conditions": "VC = 0.3V, RT = 41.2k",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Operating IQ with Internal LDO Disabled",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 280,
          "max": 400,
          "conditions": "VC = 0.3V, RT = 41.2k, INTVCC = 7.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SENSE Current Limit Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": 100,
          "typ": 110,
          "max": 120,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FBX Regulation Voltage (positive)",
          "symbol": "VFBX(REG)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.569,
          "typ": 1.6,
          "max": 1.631,
          "conditions": "VFBX > 0V (Note 3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FBX Regulation Voltage (negative)",
          "symbol": "VFBX(REG)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.816,
          "typ": -0.8,
          "max": -0.784,
          "conditions": "VFBX < 0V (Note 3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FBX Overvoltage Lockout (positive)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 6,
          "typ": 8,
          "max": 10,
          "conditions": "VFBX > 0V (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FBX Overvoltage Lockout (negative)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 7,
          "typ": 11,
          "max": 14,
          "conditions": "VFBX < 0V (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VFBX Line Regulation (positive)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.002,
          "max": 0.056,
          "conditions": "VFBX > 0V, 2.9V < VIN < 40V (Notes 3, 7)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VFBX Line Regulation (negative)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.0025,
          "max": 0.05,
          "conditions": "VFBX < 0V, 2.9V < VIN < 40V (Notes 3, 7)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Regulation Voltage",
          "symbol": "INTVCC",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": 7.2,
          "max": 7.4,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Undervoltage Lockout Threshold (falling)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.6,
          "typ": 2.7,
          "max": 2.8,
          "conditions": "Falling INTVCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Overvoltage Lockout Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 16,
          "typ": 17.5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": 30,
          "typ": 40,
          "max": null,
          "conditions": "VIN = 40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": 55,
          "typ": 95,
          "max": null,
          "conditions": "VIN = 15V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Load Regulation",
          "symbol": "∆VINTVCC/VINTVCC",
          "kind": "electrical",
          "unit": "%",
          "min": -0.9,
          "typ": null,
          "max": -0.5,
          "conditions": "0 < IINTVCC < 20mA, VIN = 8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Line Regulation",
          "symbol": "∆VINTVCC/(VINTVCC • ∆VIN)",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.008,
          "max": 0.03,
          "conditions": "8V < VIN < 40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SHDN/UVLO Threshold Voltage (falling)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.17,
          "typ": 1.22,
          "max": 1.27,
          "conditions": "VIN = INTVCC = 8V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SHDN/UVLO Pin Bias Current Low",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": 1.7,
          "typ": 2,
          "max": 2.5,
          "conditions": "SHDN/UVLO = 1.15V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SHDN/UVLO Pin Bias Current High",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 10,
          "max": 100,
          "conditions": "SHDN/UVLO = 1.30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "kHz",
          "min": 270,
          "typ": 300,
          "max": 330,
          "conditions": "RT = 41.2k to GND, VFBX = 1.6V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum VIN",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Note 6",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum SHDN/UVLO",
          "symbol": "SHDN/UVLO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "Note 6",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum INTVCC",
          "symbol": "INTVCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Printed as VIN + 0.3V, 20V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum SYNC",
          "symbol": "SYNC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum VC",
          "symbol": "VC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum SS",
          "symbol": "SS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum RT",
          "symbol": "RT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum SENSE",
          "symbol": "SENSE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Absolute Maximum FBX",
          "symbol": "FBX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range (MSOP)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "MSOP package",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10 sec) MSOP",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10 sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (LT3757I)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "LT3757I/LT3757AI operating junction temperature range (Note 2)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature (MSE package)",
          "symbol": "TJMAX",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "MSE package, per Pin Configuration",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-Ambient Thermal Resistance (MSE package)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "MSE package, exposed pad soldered to full copper plane",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "INTVCC Voltage to Bypass Internal LDO",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 7.5,
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