LT8333RDD#TRPBF

{
  "schema_version": 1,
  "type": "component",
  "slug": "lt8333rdd-trpbf",
  "title": "LT8333RDD#TRPBF",
  "brief": "ADI Others, DFN-10(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "LT8333RDD#TRPBF",
    "manufacturer": "ADI",
    "package": "DFN-10(3x3)",
    "pin_count": 11,
    "category": "Others",
    "subcategory": "Others",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt8333.pdf",
    "parts": {
      "symbol": "lt8333rdd-trpbf.kicad_sym",
      "footprint": "lt8333rdd-trpbf.kicad_mod",
      "model_3d": "lt8333rdd-trpbf-hero.glb",
      "model_3d_plain": "lt8333rdd-trpbf-etched.glb",
      "model_3d_step": "lt8333rdd-trpbf-etched.step",
      "model_3d_step_plain": "lt8333rdd-trpbf.step",
      "lbr": "lt8333rdd-trpbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C7460338",
      "digikey": "505-LT8333RDD#TRPBFTR-ND",
      "mouser": "584-LT8333RDD#TRPBF"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T17:02:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-LT8333RDD#TRPBFTR-ND",
        "status": "found"
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      "mouser": {
        "pn": "584-LT8333RDD#TRPBF",
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      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN/UVLO",
        "type": "input",
        "description": "Shutdown and undervoltage lockout pin: the part stops switching below 1.6V, resumes above 1.68V, and draws less than 1µA from VIN when the pin is below 0.2V."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin operating from 2.8V to 40V that must be locally bypassed with its input capacitor placed as close as possible to the pin."
      },
      {
        "number": "3",
        "name": "INTVCC",
        "type": "power_out",
        "description": "Regulated 3.2V internal supply output that requires a minimum 1µF low ESR ceramic bypass to GND and no additional loading."
      },
      {
        "number": "4",
        "name": "BIAS",
        "type": "power_in",
        "description": "Second input supply for INTVCC that is used when 4.4V ≤ BIAS ≤ VIN, and should be tied to GND if unused."
      },
      {
        "number": "5",
        "name": "VC",
        "type": "passive",
        "description": "Error amplifier output pin to which the external compensation network is connected."
      },
      {
        "number": "6",
        "name": "FBX",
        "type": "input",
        "description": "Voltage regulation feedback pin regulated to 1.60V for positive outputs or -0.80V for negative outputs, connected through a resistor divider from VOUT."
      },
      {
        "number": "7",
        "name": "RT",
        "type": "passive",
        "description": "A resistor from this pin to the exposed pad GND programs the switching frequency over the 300kHz to 2MHz range."
      },
      {
        "number": "8",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start pin where a capacitor to GND controls the inductor current ramp rate during start-up, with 2µA charging current and a 220Ω pull-down during faults."
      },
      {
        "number": "9",
        "name": "SYNC/MODE",
        "type": "input",
        "description": "Selects BURST, PULSE-SKIP, or SSFM operation, or synchronizes the switching frequency to an external clock, with a logic high threshold of 1.7V."
      },
      {
        "number": "10",
        "name": "SW",
        "type": "output",
        "description": "Output of the internal 40V, 3A power switch, where the metal trace area should be minimized to reduce EMI."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Power and signal ground exposed pad underneath the package that must be soldered to a continuous copper ground plane for heat removal."
      }
    ],
    "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 DD package top-view pin labels were jumbled in the extracted text. Pin numbers and names were ma"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0179,
        "at": "2026-11-02T17:02:43"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt8333.pdf",
        "pages": 26,
        "sha256": "e67c94d5b86bb3b3",
        "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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    "models_3d": [
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        "file": "lt8333rdd-trpbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.98,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "738e2eb45860c11759f8e4f44ab26932b7c15e4d5d6c8c9ac22ae866a3e38711",
        "checked": "2026-11-02",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "ADI",
      "Package": "DFN-10(3x3)",
      "Category": "Others",
      "Pins": "11"
    },
    "appearance": {
      "contacts": {
        "quote": "the negative terminal as close as possible to the exposed pad PGND copper (near EN/UVLO).",
        "page": 6,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
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    "characteristics": {
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      "source": "datasheet",
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      "rows": [
        {
          "name": "SW pin voltage",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "VIN, EN/UVLO voltage",
          "symbol": "VIN, EN/UVLO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
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        },
        {
          "name": "BIAS voltage",
          "symbol": "BIAS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
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          "max": 40,
          "conditions": "",
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        },
        {
          "name": "SYNC voltage",
          "symbol": "SYNC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
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        },
        {
          "name": "VC voltage",
          "symbol": "VC",
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          "min": null,
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        {
          "name": "FBX voltage",
          "symbol": "FBX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "",
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        },
        {
          "name": "Operating junction temperature range LT8333R",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "LT8333R",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Maximum junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 43,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN operating voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.8,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "VIN quiescent current at shutdown",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 2,
          "conditions": "VEN/UVLO = 0.2V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current at shutdown (full temperature range)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 15,
          "conditions": "VEN/UVLO = 0.2V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current at shutdown",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2,
          "max": 5,
          "conditions": "VEN/UVLO = 1.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current at shutdown (full temperature range)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2,
          "max": 25,
          "conditions": "VEN/UVLO = 1.5V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current sleep mode (not switching)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 9,
          "max": 15,
          "conditions": "SYNC = 0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current sleep mode (full temperature range)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 9,
          "max": 30,
          "conditions": "SYNC = 0V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current active mode (not switching)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1200,
          "max": 1600,
          "conditions": "SYNC = 0V or INTVCC, BIAS = 0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current active mode (full temperature range)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1200,
          "max": 1850,
          "conditions": "SYNC = 0V or INTVCC, BIAS = 0V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current active mode (not switching)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 22,
          "max": 40,
          "conditions": "SYNC = 0V or INTVCC, BIAS = 5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN quiescent current active mode (full temperature range)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 22,
          "max": 65,
          "conditions": "SYNC = 0V or INTVCC, BIAS = 5V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "BIAS threshold rising (BIAS can supply INTVCC)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 4.4,
          "typ": null,
          "max": 4.65,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "BIAS threshold falling (BIAS cannot supply INTVCC)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 4.25,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "FBX regulation voltage",
          "symbol": "FBX",
          "kind": "electrical",
          "unit": "V",
          "min": 1.568,
          "typ": 1.6,
          "max": 1.636,
          "conditions": "FBX > 0V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "FBX regulation voltage",
          "symbol": "FBX",
          "kind": "electrical",
          "unit": "V",
          "min": -0.822,
          "typ": -0.8,
          "max": -0.78,
          "conditions": "FBX < 0V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "FBX line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.005,
          "max": 0.015,
          "conditions": "FBX > 0V, 2.8V < VIN < 40V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "FBX pin current",
          "symbol": "IFBX",
          "kind": "electrical",
          "unit": "nA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "FBX = 1.6V, –0.8V, l",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency fOSC",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 265,
          "typ": 300,
          "max": 327,
          "conditions": "RT = 165k, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency fOSC",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.9,
          "typ": 1,
          "max": 1.08,
          "conditions": "RT = 45.3k, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switching frequency fOSC",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 1.85,
          "typ": 2,
          "max": 2.15,
          "conditions": "RT = 20k, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SSFM maximum frequency deviation",
          "symbol": "∆f/fOSC",
          "kind": "electrical",
          "unit": "%",
          "min": 14,
          "typ": 20,
          "max": 25,
          "conditions": "(∆f/fOSC) • 100, RT = 20k",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time BURST mode",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 70,
          "max": 90,
          "conditions": "VIN = 12V (Note 6)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum on-time PULSE SKIP mode",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 60,
          "max": 85,
          "conditions": "VIN = 12V (Note 6)",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Minimum off-time",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": 50,
          "typ": null,
          "max": 75,
          "conditions": "l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "fSYNC/fOSC allowed ratio",
          "symbol": "",
          "kind": "electrical",
          "unit": "kHz/kHz",
          "min": 0.95,
          "typ": 1,
          "max": 1.25,
          "conditions": "RT = 20k",
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          "source": "datasheet"
        },
        {
          "name": "SYNC pin current",
          "symbol": "ISYNC",
          "kind": "electrical",
          "unit": "µA",
          "min": 10,
          "typ": null,
          "max": 25,
          "conditions": "SYNC = 2V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SYNC pin current out of pin",
          "symbol": "ISYNC",
          "kind": "electrical",
          "unit": "µA",
          "min": 10,
          "typ": null,
          "max": 25,
          "conditions": "SYNC = 0V, current out of pin",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum switch current limit threshold",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 3,
          "typ": 3.75,
          "max": 4.65,
          "conditions": "l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch overcurrent threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 5.6,
          "max": null,
          "conditions": "discharges SS pin",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch RDS(ON)",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "ISW = 0.5A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch leakage current",
          "symbol": "ISW",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "VSW = 40V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO pin threshold rising",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.576,
          "typ": 1.68,
          "max": 1.9,
          "conditions": "start switching, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO pin threshold falling",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.545,
          "typ": 1.6,
          "max": 1.645,
          "conditions": "stop switching, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN/UVLO pin current",
          "symbol": "IEN/UVLO",
          "kind": "electrical",
          "unit": "nA",
          "min": -75,
          "typ": null,
          "max": 75,
          "conditions": "VEN/UVLO = 1.6V, l",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soft-start charge current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "SS = 0.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soft-start pull-down resistance",
          "symbol": "RSS",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "fault condition, SS = 0.1V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Error amplifier transconductance",
          "symbol": "gm",
          "kind": "electrical",
          "unit": "µA/V",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "FBX = 1.6V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Error amplifier transconductance",
          "symbol": "gm",
          "kind": "electrical",
          "unit": "µA/V",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "FBX = –0.8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Error amplifier voltage gain",
          "symbol": "",
          "kind": "electrical",
          "unit": "V/V",
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