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Ray Set visibility: public 2f9f80f 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "xr77103elbtr",
  "title": "XR77103ELBTR",
  "brief": "MaxLinear DC-DC Converters, QFN-32-EP(4x4). 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 ics",
    "xr77103elbtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "XR77103ELBTR",
    "manufacturer": "MaxLinear",
    "package": "QFN-32-EP(4x4)",
    "pin_count": 33,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/61109c682334cc95b36418522e22c6ff.pdf",
    "parts": {
      "symbol": "xr77103elbtr.kicad_sym",
      "footprint": "xr77103elbtr.kicad_mod",
      "model_3d": "xr77103elbtr-hero.glb",
      "model_3d_plain": "xr77103elbtr-etched.glb",
      "model_3d_step": "xr77103elbtr-etched.step",
      "model_3d_step_plain": "xr77103elbtr.step",
      "lbr": "xr77103elbtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2070915",
      "digikey": "1016-2217-2-ND",
      "mouser": "701-XR77103ELBTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T23:54:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1016-2217-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "701-XR77103ELBTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT3",
        "type": "input",
        "description": "Buck 3 output sense pin."
      },
      {
        "number": "2",
        "name": "COMP3",
        "type": "passive",
        "description": "Compensation pin for Buck 3; connect a series RC circuit to this pin for compensation."
      },
      {
        "number": "3",
        "name": "A0",
        "type": "input",
        "description": "I2C address select pin; A0 is internally pulled high through a 100kΩ pull-up resistor."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "IC supply pin; connect a capacitor as close as possible to this pin and AGND. VIN, VIN1, VIN2 and VIN3 must be tied together."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal supply; connect a ceramic capacitor from this pin to AGND, and tie VCC to VIN for VIN = 5V."
      },
      {
        "number": "7",
        "name": "COMP1",
        "type": "passive",
        "description": "Compensation pin for Buck 1; connect a series RC circuit to this pin for compensation."
      },
      {
        "number": "8",
        "name": "VOUT1",
        "type": "input",
        "description": "Buck 1 output sense pin."
      },
      {
        "number": "9",
        "name": "BST1",
        "type": "passive",
        "description": "Bootstrap capacitor for Buck 1; connect a bootstrap capacitor from this pin to LX1."
      },
      {
        "number": "10",
        "name": "VIN1",
        "type": "power_in",
        "description": "Input supply for Buck 1; connect a capacitor as close as possible to this pin and PGND. VIN1 must be tied to VIN."
      },
      {
        "number": "11",
        "name": "LX1",
        "type": "output",
        "description": "Switching node for Buck 1."
      },
      {
        "number": "12",
        "name": "LX1",
        "type": "output",
        "description": "Switching node for Buck 1."
      },
      {
        "number": "13",
        "name": "LX2",
        "type": "output",
        "description": "Switching node for Buck 2."
      },
      {
        "number": "14",
        "name": "LX2",
        "type": "output",
        "description": "Switching node for Buck 2."
      },
      {
        "number": "15",
        "name": "VIN2",
        "type": "power_in",
        "description": "Input supply for Buck 2; connect a capacitor as close as possible to this pin and PGND. VIN2 must be tied to VIN."
      },
      {
        "number": "16",
        "name": "BST2",
        "type": "passive",
        "description": "Bootstrap capacitor for Buck 2; connect a bootstrap capacitor from this pin to LX2."
      },
      {
        "number": "17",
        "name": "VOUT2",
        "type": "input",
        "description": "Buck 2 output sense pin."
      },
      {
        "number": "18",
        "name": "COMP2",
        "type": "passive",
        "description": "Compensation pin for Buck 2; connect a series RC circuit to this pin for compensation."
      },
      {
        "number": "19",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "20",
        "name": "nWR",
        "type": "input",
        "description": "Write protection input for NVM; data can be written to NVM when this pin is low, and it is internally pulled high through a 100kΩ pull-up resistance."
      },
      {
        "number": "21",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Data I/O pin for the I2C serial interface."
      },
      {
        "number": "22",
        "name": "SCL",
        "type": "input",
        "description": "Clock input pin for the I2C serial interface."
      },
      {
        "number": "23",
        "name": "VL",
        "type": "power_in",
        "description": "Supply pin for the I2C interface; supply 3.3V typically, and it can be left floating if the I2C interface is not used."
      },
      {
        "number": "24",
        "name": "PGOOD",
        "type": "output",
        "description": "Power good output; open-drain output asserted after all converters are sequenced and within regulation."
      },
      {
        "number": "25",
        "name": "SYNC",
        "type": "input",
        "description": "External clock input pin; connect to AGND when unused."
      },
      {
        "number": "26",
        "name": "EN",
        "type": "input",
        "description": "Enable control input; set EN high to enable converters."
      },
      {
        "number": "27",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "28",
        "name": "VIN",
        "type": "power_in",
        "description": "IC supply pin; connect a capacitor as close as possible to this pin and AGND. VIN, VIN1, VIN2 and VIN3 must be tied together."
      },
      {
        "number": "29",
        "name": "LX3",
        "type": "output",
        "description": "Switching node for Buck 3."
      },
      {
        "number": "30",
        "name": "LX3",
        "type": "output",
        "description": "Switching node for Buck 3."
      },
      {
        "number": "31",
        "name": "VIN3",
        "type": "power_in",
        "description": "Input supply for Buck 3; connect a capacitor as close as possible to this pin and PGND. VIN3 must be tied to VIN."
      },
      {
        "number": "32",
        "name": "BST3",
        "type": "passive",
        "description": "Bootstrap capacitor for Buck 3; connect a bootstrap capacitor from this pin to LX3."
      },
      {
        "number": "33",
        "name": "PGND",
        "type": "power_in",
        "description": "Exposed pad is power ground (PGND); the pad number is shown as 33 in the typical application schematic."
      }
    ],
    "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 Pin Functions table prints the e-PAD number as '-'. The number '33' is taken from the e-PAD labe; VCC is described only as an 'Internal supply' with a bypass capacitor to AGND, and it can be tied to; The page 7 pin diagram text is scrambled. Pin numbers and names were taken from the Pin Functions ta",
          "1/33 pins cited to the wrong page (name found elsewhere): ['33:PGND (e-PAD)@p8']"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0526,
        "at": "2026-10-30T23:54:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/61109c682334cc95b36418522e22c6ff.pdf",
        "pages": 28,
        "sha256": "c4640b96d4dc8c55",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "xr77103elbtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xr77103elbtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "29643b9b74d9f24812e14f5f37f2f893ca37ab0bda2aa1cc8a5b639158bcf675",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MaxLinear",
      "Package": "QFN-32-EP(4x4)",
      "Category": "Power Management ICs",
      "Pins": "33"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c4640b96d4dc8c552fd5dd47ea156f6ebb080a36d08b334637e0c5e6d868fce8",
      "rows": [
        {
          "name": "VIN input voltage range",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 5.5,
          "typ": null,
          "max": 14,
          "conditions": "Full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN input voltage range, VCC tied to VIN",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "VCC tied to VIN for VIN = 5V; full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC internal biasing supply voltage",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 4.9,
          "typ": 5,
          "max": 5.1,
          "conditions": "ILOAD = 0mA; full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage range",
          "symbol": "VOUTx",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": 6,
          "conditions": "Full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.44,
          "typ": null,
          "max": 2.3,
          "conditions": "I2C control; full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Adjustable soft-start period range",
          "symbol": "",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": null,
          "max": 4,
          "conditions": "Full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak inductor current limit range",
          "symbol": "ILIMx",
          "kind": "electrical",
          "unit": "A",
          "min": 2,
          "typ": null,
          "max": 4.5,
          "conditions": "Full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak inductor current limit accuracy",
          "symbol": "ILIMx",
          "kind": "tolerance",
          "unit": "%",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "Peak inductor current limit set at 4A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 12V; Normal",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output voltage accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "5.5V ≤ VIN ≤ 14V; Normal; full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Synchronization range",
          "symbol": "SYNCRANGE",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 2.31,
          "conditions": "fSW + 5%; full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Synchronization signal minimum duty cycle",
          "symbol": "SYNCD_MIN",
          "kind": "electrical",
          "unit": "%",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Synchronization signal maximum duty cycle",
          "symbol": "SYNCD_MAX",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Full operating temperature range",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC internal biasing supply current",
          "symbol": "IVCC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VIN = 12V; full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input threshold high (SDA, SCL, nWR, A0)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.45,
          "typ": null,
          "max": null,
          "conditions": "VINPUT rising, VL = 3.3V; full operating temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold low (SDA, SCL, nWR, A0)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.95,
          "conditions": "VINPUT falling, VL = 3.3V; full operating temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PGOOD output low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "ISINK = 1mA; full operating temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold high (SYNC, EN)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.53,
          "typ": null,
          "max": null,
          "conditions": "VINPUT rising; full operating temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold low (SYNC, EN)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.36,
          "conditions": "VINPUT falling; full operating temperature range",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "SDA logic output low voltage",
          "symbol": "VOL_I2C",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "At 3mA sink current; full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SCL clock frequency",
          "symbol": "fSCL",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SCL clock high period",
          "symbol": "tHIGH",
          "kind": "electrical",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SCL clock low period",
          "symbol": "tLOW",
          "kind": "electrical",
          "unit": "μs",
          "min": 1.3,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C spike rejection filter pulse width",
          "symbol": "tSP",
          "kind": "electrical",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 50,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C data setup time",
          "symbol": "tSU;DAT",
          "kind": "electrical",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C data hold time",
          "symbol": "tHD;DAT",
          "kind": "electrical",
          "unit": "ns",
          "min": 0,
          "typ": null,
          "max": 900,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C bus free time between stop and start",
          "symbol": "tBUF",
          "kind": "electrical",
          "unit": "μs",
          "min": 1.3,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C repeated start condition setup time",
          "symbol": "tSU;STA",
          "kind": "electrical",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "Full operating temperature range",
          "source_page": 6,
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