L6986TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "l6986tr",
  "title": "L6986TR",
  "brief": "STMicroelectronics DC-DC Converters, HTSSOP-16-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)",
    "l6986tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "L6986TR",
    "manufacturer": "STMicroelectronics",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.st.com/resource/en/datasheet/l6986tr.pdf",
    "parts": {
      "symbol": "l6986tr.kicad_sym",
      "footprint": "l6986tr.kicad_mod",
      "model_3d": "l6986tr-hero.glb",
      "model_3d_plain": "l6986tr-etched.glb",
      "model_3d_step": "l6986tr-etched.step",
      "model_3d_step_plain": "l6986tr.step",
      "lbr": "l6986tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2070828",
      "digikey": "497-14694-2-ND",
      "mouser": "511-L6986TR"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:48:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-14694-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-L6986TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RST",
        "type": "output",
        "description": "RST is an open-collector output that is driven low when the output voltage is out of regulation and is released after an adjustable DELAY time once the output is over the active delay threshold."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_out",
        "description": "VCC is the internal LDO output that requires a ceramic capacitor of at least 470 nF to filter the internal voltage reference and supplies the embedded analog circuitry."
      },
      {
        "number": "3",
        "name": "SS/INH",
        "type": "input",
        "description": "Pulling this pin to GND with an open-collector stage disables the device (INH mode), and an internal 4 A typical current generator charges the external soft-start capacitor."
      },
      {
        "number": "4",
        "name": "SYNCH",
        "type": "input",
        "description": "This pin provides master/slave synchronization and should be left floating when not used in LNM."
      },
      {
        "number": "5",
        "name": "FSW",
        "type": "input",
        "description": "A pull-up resistor (E24 series) to VCC or pull-down to GND selects the switching frequency, with pinstrapping active only before the soft-start phase."
      },
      {
        "number": "6",
        "name": "MLF",
        "type": "input",
        "description": "A pull-up resistor (E24 series) to VCC or pull-down to GND selects low noise or low consumption mode and the active RST threshold, with pinstrapping active only before the soft-start phase."
      },
      {
        "number": "7",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the output of the error amplifier, where the compensation network is connected."
      },
      {
        "number": "8",
        "name": "DELAY",
        "type": "passive",
        "description": "An external capacitor on this pin sets the time delay before the RST open-collector output is asserted after the output exceeds the reset threshold, and if left floating RST acts like a power good."
      },
      {
        "number": "9",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, with a feedback reference of 0.85 V typical."
      },
      {
        "number": "10",
        "name": "SGND",
        "type": "power_in",
        "description": "SGND is the signal ground and must be connected to the exposed pad."
      },
      {
        "number": "11",
        "name": "PGND",
        "type": "power_in",
        "description": "PGND is the power ground and must be connected to the exposed pad."
      },
      {
        "number": "12",
        "name": "PGND",
        "type": "power_in",
        "description": "PGND is the power ground and must be connected to the exposed pad."
      },
      {
        "number": "13",
        "name": "LX",
        "type": "output",
        "description": "LX is the switching node, with absolute maximum rating of -0.3 V to VIN + 0.3 V and high-side/low-side switch current limited to 2 A."
      },
      {
        "number": "14",
        "name": "LX",
        "type": "output",
        "description": "LX is the switching node, with absolute maximum rating of -0.3 V to VIN + 0.3 V and high-side/low-side switch current limited to 2 A."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "VIN is the DC input voltage, with operating range of 4 V to 38 V and absolute maximum of 40 V."
      },
      {
        "number": "16",
        "name": "VBIAS",
        "type": "input",
        "description": "VBIAS is typically connected to the regulated output voltage and can take an external reference to improve light-load efficiency, or be connected to GND if not used."
      },
      {
        "number": "17",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 list is taken from Table 1 (pages 5-6), which gives 16 numbered pins plus an exposed pad labelle"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0166,
        "at": "2026-11-05T22:48:41"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/l6986tr.pdf",
        "pages": 68,
        "sha256": "59e9f81936259e74",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "HTSSOP-16-EP",
      "Category": "Power Management (PMIC)",
      "Pins": "17"
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    "characteristics": {
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          "name": "Operating input voltage range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 38,
          "conditions": "",
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        {
          "name": "Input voltage absolute maximum",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Storage temperature range",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering 10 sec)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering 10 sec",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-side / low-side switch current",
          "symbol": "IHS, ILS",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "high-side / low-side switch current",
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        },
        {
          "name": "Reference voltage feedback",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.841,
          "typ": 0.85,
          "max": 0.859,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "RST threshold release delay",
          "symbol": "VTHD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.19,
          "typ": 1.234,
          "max": 1.258,
          "conditions": "VFB > VTHR",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Overvoltage trip",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "VOVP/VREF",
          "min": 1.15,
          "typ": 1.2,
          "max": 1.25,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Overvoltage hysteresis",
          "symbol": "VOVP HYST",
          "kind": "electrical",
          "unit": "%",
          "min": 0.5,
          "typ": 2,
          "max": 5,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "SS discharge voltage",
          "symbol": "VSS_L_CLMP",
          "kind": "electrical",
          "unit": "mV",
          "min": 855,
          "typ": 900,
          "max": 945,
          "conditions": "VCC < VCCH OR t < TSS SETUP OR thermal fail",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Start of internal error amplifier ramp",
          "symbol": "VSS START",
          "kind": "electrical",
          "unit": "V",
          "min": 0.995,
          "typ": 1.1,
          "max": 1.15,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "SS/INH VSS threshold",
          "symbol": "VINH",
          "kind": "electrical",
          "unit": "mV",
          "min": 200,
          "typ": 460,
          "max": 700,
          "conditions": "SS rising",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Transconductance",
          "symbol": "Gm",
          "kind": "electrical",
          "unit": "µS",
          "min": 85,
          "typ": 155,
          "max": 210,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VIN LCM SWO",
          "symbol": "IQ OPVIN",
          "kind": "electrical",
          "unit": "µA",
          "min": 4,
          "typ": 10,
          "max": 15,
          "conditions": "LCM - SWO, VREF < VFB < VOVP (SLEEP), VBIAS = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VIN LCM NO SWO",
          "symbol": "IQ OPVIN",
          "kind": "electrical",
          "unit": "µA",
          "min": 45,
          "typ": 70,
          "max": 100,
          "conditions": "LCM - NO SWO, VREF < VFB < VOVP (SLEEP), VBIAS = GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VIN LNM SWO",
          "symbol": "IQ OPVIN",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.5,
          "typ": 1.5,
          "max": 5,
          "conditions": "LNM - SWO, VFB = GND (NO SLEEP), VBIAS = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VIN LNM NO SWO",
          "symbol": "IQ OPVIN",
          "kind": "electrical",
          "unit": "mA",
          "min": 2,
          "typ": 2.8,
          "max": 6,
          "conditions": "LNM - NO SWO, VFB = GND (NO SLEEP), VBIAS = GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VBIAS LCM SWO",
          "symbol": "IQ OPVBIAS",
          "kind": "electrical",
          "unit": "µA",
          "min": 30,
          "typ": 50,
          "max": 90,
          "conditions": "LCM - SWO, VREF < VFB < VOVP (SLEEP), VBIAS = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current from VBIAS LNM SWO",
          "symbol": "IQ OPVBIAS",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.5,
          "typ": 1.2,
          "max": 5,
          "conditions": "LNM - SWO, VFB = GND (NO SLEEP), VBIAS = 3.3 V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current from VIN",
          "symbol": "ISHTDWN",
          "kind": "electrical",
          "unit": "µA",
          "min": 4,
          "typ": 8,
          "max": 15,
          "conditions": "VSS/INH = GND",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Selected RST threshold (RVCC 0, RGND NC, LCM)",
          "symbol": "VRST",
          "kind": "electrical",
          "unit": "V",
          "min": 0.779,
          "typ": 0.791,
          "max": 0.802,
          "conditions": "RVCC = 0, RGND = NC, LCM, VRST/VOUT 93%",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Selected RST threshold (RVCC NC, RGND 0, LNM)",
          "symbol": "VRST",
          "kind": "electrical",
          "unit": "V",
          "min": 0.779,
          "typ": 0.791,
          "max": 0.802,
          "conditions": "RVCC = NC, RGND = 0, LNM, VRST/VOUT 93%",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Selected switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 225,
          "typ": 250,
          "max": 275,
          "conditions": "RVCC = 0, RGND = NC",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Selected switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 450,
          "typ": 500,
          "max": 550,
          "conditions": "RVCC = NC, RGND = 0",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Selected switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 900,
          "typ": 1000,
          "max": 1100,
          "conditions": "RVCC = NC, RGND = 3.3 k",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Selected switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 1575,
          "typ": 1750,
          "max": 1925,
          "conditions": "RVCC = NC, RGND = 33 k; no synchronization as slave in LNM",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Selected switching frequency",
          "symbol": "fSW",
          "kind": "electrical",
          "unit": "kHz",
          "min": 1800,
          "typ": 2000,
          "max": 2200,
          "conditions": "RVCC = NC, RGND = 56 k; no synchronization as slave in LNM",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High-side RDSON",
          "symbol": "RDSON HS",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.18,
          "max": 0.36,
          "conditions": "ISW = 1 A",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Low-side RDSON",
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          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.15,
          "max": 0.3,
          "conditions": "ISW = 1 A",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction ambient",
          "symbol": "Rth JA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "device soldered on the STMicroelectronics demonstration board",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to exposed pad",
          "symbol": "Rth JC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "for board design, not suggested to estimate TJ from power losses",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown temperature",
          "symbol": "TSHDWN",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 165,
          "max": null,
          "conditions": "not tested in production",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown hysteresis",
          "symbol": "THYS",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "not tested in production",
          "source_page": 10,
          "source": "datasheet"
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      ]
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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