LT1308BIS8#TRPBF

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  "slug": "lt1308bis8-trpbf",
  "title": "LT1308BIS8#TRPBF",
  "brief": "Analog Devices DC-DC Converters, SOIC-8. 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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    "power management (pmic)",
    "lt1308bis8#trpbf",
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  "component": {
    "mpn": "LT1308BIS8#TRPBF",
    "manufacturer": "Analog Devices",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589803659736346624",
    "parts": {
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    "distributor_links": {
      "lcsc": "C663410",
      "digikey": "505-LT1308BIS8#TRPBFTR-ND",
      "mouser": "584-LT1308BIS8#TRPBF"
    },
    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
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        "pn": "505-LT1308BIS8#TRPBFTR-ND",
        "status": "found",
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "VC",
        "type": "passive",
        "description": "Compensation pin for the error amplifier; connect a series RC from this pin to ground (typically 47kΩ and 100pF) and minimize trace area at VC."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin with a 1.22V reference; connect the resistive divider tap here with VOUT = 1.22V(1 + R1/R2), and keep FB trace area small; FB voltage is limited to VIN + 1V and current into FB to ±1mA."
      },
      {
        "number": "3",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown pin: ground to turn the switcher off, tie to 1V or more to enable; it does not need to be tied to VIN, and absolute maximum voltage is 10V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin to be connected directly to the local ground plane, which also serves as the heat sink for the package."
      },
      {
        "number": "5",
        "name": "SW",
        "type": "output",
        "description": "Switch pin that connects to the inductor and diode; minimize its trace area to reduce EMI, with the SW voltage rated from -0.4V to 36V."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply pin with an operating input range of 1V to 10V that must have a local bypass capacitor connected right at the pin to ground."
      },
      {
        "number": "7",
        "name": "LBI",
        "type": "input",
        "description": "Low-battery detector input with a 200mV threshold; the voltage on LBI must stay between -100mV and 1V, and the pin should float if the detector is unused."
      },
      {
        "number": "8",
        "name": "LBO",
        "type": "output",
        "description": "Open-collector low-battery detector output that can sink 50μA, with a 220kΩ pull-up recommended; it is high impedance when SHDN is grounded and absolute maximum voltage is 10V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
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        "primary_model": "claude-haiku-5-5",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-21T00:42:50"
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        "sha256": "11d1f4d87cd83de1",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "connected to these pins also functions as a heat sink. For the TSSOP package, connect all pins to ground copper",
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        "material": "copper"
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    "characteristics": {
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      "rows": [
        {
          "name": "Switching quiescent current (LT1308B)",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "Switching, LT1308B; l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current in shutdown",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
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          "max": 1,
          "conditions": "VSHDN = 0V (LT1308A/LT1308B); l; VIN = 1.2V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Feedback voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 1.19,
          "typ": 1.22,
          "max": 1.25,
          "conditions": "l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB pin bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 27,
          "max": 80,
          "conditions": "l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 3,
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        },
        {
          "name": "Reference line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.05,
          "max": 0.4,
          "conditions": "1.1V ≤ VIN ≤ 2V; l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.01,
          "max": 0.2,
          "conditions": "2V ≤ VIN ≤ 10V; l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum input voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.92,
          "max": 1,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Switching frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 500,
          "typ": 600,
          "max": 750,
          "conditions": "l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 82,
          "typ": 90,
          "max": null,
          "conditions": "l; VIN = 1.2V, VSHDN = VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch current limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 2,
          "typ": 3,
          "max": 4.5,
          "conditions": "Duty Cycle = 30% (Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch VCESAT",
          "symbol": "VCESAT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 290,
          "max": 350,
          "conditions": "ISW = 2A (25°C, –40°C), VIN = 1.5V",
          "source_page": 4,
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        },
        {
          "name": "Switch VCESAT",
          "symbol": "VCESAT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 330,
          "max": 400,
          "conditions": "ISW = 2A (85°C), VIN = 1.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown pin current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 2,
          "max": 5,
          "conditions": "VSHDN = 1.1V; l",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown pin current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 20,
          "max": 35,
          "conditions": "VSHDN = 6V; l",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown pin current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 0.1,
          "conditions": "VSHDN = 0V; l",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LBI threshold voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": 196,
          "typ": 200,
          "max": 204,
          "conditions": "l",
          "source_page": 4,
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        {
          "name": "LBI threshold voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": 193,
          "typ": 200,
          "max": 207,
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        {
          "name": "LBO output low",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.25,
          "conditions": "ISINK = 50μA; l",
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        {
          "name": "LBO leakage current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 0.1,
          "conditions": "VLBI = 250mV, VLBO = 5V; l",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "LBI input bias current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 33,
          "max": 100,
          "conditions": "VLBI = 150mV",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch leakage current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 10,
          "conditions": "VSW = 5V; l",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN, SHDN, LBO voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "SW voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.4,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VC voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "LBI voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current into FB pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Lead temperature (soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 sec",
          "source_page": 2,
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        },
        {
          "name": "Operating temperature range (Industrial grade)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial grade (LT1308BIS8, –40°C to 85°C)",
          "source_page": 2,
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        {
          "name": "Input voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "Operating input voltage range stated in datasheet description",
          "source_page": 1,
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        },
        {
          "name": "Thermal resistance, junction-to-ambient (S8 package)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 190,
          "max": null,
          "conditions": "8-lead plastic SO (S8 package)",
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        },
        {
          "name": "Maximum junction temperature",
          "symbol": "TJMAX",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
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