LT8609AIMSE#PBF

{
  "schema_version": 1,
  "type": "component",
  "slug": "lt8609aimse-pbf",
  "title": "LT8609AIMSE#PBF",
  "brief": "Analog Devices DC-DC Converters, MSOP-10-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lt8609aimse#pbf"
  ],
  "component": {
    "mpn": "LT8609AIMSE#PBF",
    "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/8589836534217682944",
    "parts": {
      "symbol": "lt8609aimse-pbf.kicad_sym",
      "footprint": "lt8609aimse-pbf.kicad_mod",
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      "lbr": "lt8609aimse-pbf.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap capacitor pin providing the drive voltage (above VIN) for the internal top-side power NMOS switch. Place a 0.1µF ceramic capacitor from BST to SW as close to the IC as possible; do not place a series resistor."
      },
      {
        "number": "2",
        "name": "SW",
        "type": "power_out",
        "description": "Switch node - output of the internal top-side and synchronous bottom-side power MOSFETs. Connect to the external inductor and to the bootstrap capacitor. Keep this node small on the PCB for good EMI/thermal performance."
      },
      {
        "number": "3",
        "name": "INTVCC",
        "type": "power_out",
        "description": "Internal 3.5V LDO regulator bypass pin that supplies the internal gate drivers and control circuits. Voltage varies from 2.8V to 3.5V; max output 20mA. Decouple to GND with at least a 1µF low-ESR ceramic capacitor. Do not load with external circuitry."
      },
      {
        "number": "4",
        "name": "RT",
        "type": "input",
        "description": "Oscillator frequency-set pin. Tie a resistor from RT to GND to program the switching frequency between 200kHz (RT = 221kΩ) and 2.2MHz (RT = 16.2kΩ)."
      },
      {
        "number": "5",
        "name": "SYNC",
        "type": "input",
        "description": "External clock synchronization / mode-select input. Tie to GND for low-ripple Burst Mode; drive with an external clock (200kHz-2.2MHz) to synchronize; leave floating for pulse-skipping mode; tie to INTVCC or 3.2V-5.0V for pulse-skipping mode with spread-spectrum modulation."
      },
      {
        "number": "6",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for the adjustable-output LT8609A. Regulated to 0.782V. Connect to the tap of the external VOUT-to-GND resistor divider that programs the output voltage. Add a ~10pF phase-lead capacitor from VOUT to FB when using large divider resistors."
      },
      {
        "number": "7",
        "name": "TR/SS",
        "type": "input",
        "description": "Output tracking and soft-start pin. An internal 2µA pull-up from INTVCC charges an external capacitor to program the output-voltage slew rate. Below 0.782V the part regulates FB to the TR/SS voltage; above 0.782V tracking is disabled. Pulled to GND through a 300Ω MOSFET in shutdown and fault conditions."
      },
      {
        "number": "8",
        "name": "PG",
        "type": "output",
        "description": "Power-good open-drain output. Held low until FB is within ±8.5% of the regulation setpoint and no fault is present. Absolute max 42V; valid when VIN > 3.2V regardless of EN/UV state. Requires an external pull-up resistor."
      },
      {
        "number": "9",
        "name": "VIN",
        "type": "power_in",
        "description": "Main input supply pin, 3.0V to 42V. Supplies internal control circuitry and the internal top-side power switch. Locally bypass with a low-ESR ceramic capacitor placed close to VIN and the exposed-pad GND."
      },
      {
        "number": "10",
        "name": "EN/UV",
        "type": "input",
        "description": "Enable / input under-voltage lockout pin. Rising threshold 1.05V, falling 1.00V. Ground to shut the part down (IQ ≈ 1µA); tie to VIN if shutdown/UVLO is not used, or use an external VIN divider to program a precise VIN turn-on threshold. Absolute max 42V."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed thermal pad - signal and power ground return. Must be soldered directly to the PCB ground plane both for the electrical return path and to achieve the specified θJA = 40°C/W thermal resistance."
      }
    ],
    "provenance": {
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        "sha256": "bb514bf594e97238",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 11,
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        "refuses_to_fabricate": true
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "MSOP-10-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "11"
    },
    "characteristics": {
      "version": 1,
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          "name": "FB, TR/SS pin voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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        {
          "name": "SYNC pin voltage (absolute maximum)",
          "symbol": "",
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        {
          "name": "Storage temperature range",
          "symbol": "",
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          "unit": "°C",
          "min": -65,
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        },
        {
          "name": "Operating junction temperature range (LT8609AI grade)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
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          "conditions": "LT8609AI (MSE package, I grade)",
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        {
          "name": "Input voltage range (headline)",
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          "kind": "recommended_operating",
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          "conditions": "Stated in Features section, not in a table",
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        {
          "name": "Thermal resistance, junction to ambient (MSE package)",
          "symbol": "θJA",
          "kind": "thermal",
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          "typ": 40,
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          "name": "Minimum Input Voltage",
          "symbol": "",
          "kind": "electrical",
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          "typ": 3,
          "max": 3.2,
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        {
          "name": "VIN Quiescent Current (not switching, EN/UV low)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 4,
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        {
          "name": "VIN Quiescent Current (not switching, EN/UV high)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
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          "typ": 1.7,
          "max": 12,
          "conditions": "VEN/UV = 2V, Not Switching, VSYNC = 0V",
          "source_page": 4,
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        },
        {
          "name": "VIN Current in Regulation (100µA load)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 46,
          "max": 90,
          "conditions": "VIN = 6V, VOUT = 2.7V, Output Load = 100μA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Current in Regulation (1mA load)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 480,
          "max": 700,
          "conditions": "VIN = 6V, VOUT = 2.7V, Output Load = 1mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage (E-, I-, H-Grade)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.778,
          "typ": 0.782,
          "max": 0.786,
          "conditions": "VIN = 6V, ILOAD = 100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Reference Voltage (E-, I-, H-Grade, over temperature)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.77,
          "typ": 0.782,
          "max": 0.794,
          "conditions": "VIN = 6V, ILOAD = 100mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage Line Regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.004,
          "max": 0.02,
          "conditions": "VIN = 4.0V to 40V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Pin Input Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VFB = 1.0V",
          "source_page": 4,
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        {
          "name": "Minimum On-Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
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          "max": 75,
          "conditions": "ILOAD = 1.5A, SYNC = 0V",
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        {
          "name": "Minimum On-Time",
          "symbol": "",
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          "min": null,
          "typ": 45,
          "max": 60,
          "conditions": "ILOAD = 1.5A, SYNC = 1.9V",
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        {
          "name": "Minimum Off Time",
          "symbol": "",
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          "min": null,
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          "max": 130,
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        {
          "name": "Oscillator Frequency",
          "symbol": "RT",
          "kind": "electrical",
          "unit": "kHz",
          "min": 155,
          "typ": 200,
          "max": 245,
          "conditions": "RT = 221k, ILOAD = 0.5A",
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        {
          "name": "Oscillator Frequency",
          "symbol": "RT",
          "kind": "electrical",
          "unit": "kHz",
          "min": 640,
          "typ": 700,
          "max": 760,
          "conditions": "RT = 60.4k, ILOAD = 0.5A",
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        {
          "name": "Oscillator Frequency",
          "symbol": "RT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 1.925,
          "typ": 2,
          "max": 2.075,
          "conditions": "RT = 18.2k, ILOAD = 0.5A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Top Power NMOS Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 3.4,
          "typ": 4.5,
          "max": 5.7,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "SW Leakage Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "VIN = 42V, VSW = 40V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "EN/UV Pin Threshold (rising)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.99,
          "typ": 1.05,
          "max": 1.11,
          "conditions": "EN/UV Rising",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "EN/UV Pin Current (LT8609/LT8609A)",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VEN/UV = 2V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Upper Threshold Offset from VFB (LT8609/LT8609A)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 5,
          "typ": 8.5,
          "max": 13,
          "conditions": "VFB Rising",
          "source_page": 5,
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        },
        {
          "name": "PG Lower Threshold Offset from VFB (LT8609/LT8609A)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 5,
          "typ": 8.5,
          "max": 13,
          "conditions": "VFB Falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Leakage Current",
          "symbol": "VPG",
          "kind": "electrical",
          "unit": "nA",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "VPG = 42V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "PG Pull-Down Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 550,
          "max": 1200,
          "conditions": "VPG = 0.1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Sync Low Input Voltage (LT8609/LT8609A)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": null,
          "max": 0.9,
          "conditions": "",
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        {
          "name": "Sync High Input Voltage (LT8609/LT8609A)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 3.2,
          "conditions": "INTVCC = 3.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "TR/SS Source Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": 1,
          "typ": 2,
          "max": 3,
          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "TR/SS Pull-Down Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 300,
          "max": 900,
          "conditions": "Fault Condition, TR/SS = 0.1V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Spread Spectrum Modulation Frequency (LT8609/LT8609A)",
          "symbol": "VSYNC",
          "kind": "electrical",
          "unit": "kHz",
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          "typ": 3,
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          "conditions": "VSYNC = 3.3V",
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