SL9459

{
  "schema_version": 1,
  "type": "component",
  "slug": "sl9459",
  "title": "SL9459",
  "brief": "Slkor SLKORMICRO Elec DC-DC Converters, SOT-23-6L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
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  "component": {
    "mpn": "SL9459",
    "manufacturer": "Slkor SLKORMICRO Elec",
    "package": "SOT-23-6L",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590225447544909824",
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      "lbr": "sl9459.lbr"
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    "distributor_links": {
      "lcsc": "C2980860"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:02:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BST",
        "type": "passive",
        "description": "Bootstrap pin that raises the positive supply for the high-side MOSFET driver, with a boost capacitor connected between BST and SW."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, to be connected as close as possible to the output capacitor and kept away from the high-current switching path."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input to the error amplifier that sets the output voltage; when the load is shorted and FB falls below 250mV, foldback reduces the oscillator frequency to ensure reliable current limiting."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable input: pulling it below the specified threshold (Venf 1.17 V typ.) shuts the chip down and above Venr (1.35 V typ.) enables it, and a 100kΩ resistor to IN enables it automatically."
      },
      {
        "number": "5",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply input for all internal control circuitry, requiring a decoupling capacitor to ground to reduce switching spikes; operating range 4.5V to 60V, absolute maximum 62V."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "Switch output pin, with a low-VF Schottky diode to ground to be placed close to it to reduce switching spikes; SW voltage is limited to VIN(MAX)+0.3V."
      }
    ],
    "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 datasheet gives only one package (SOT23-6L) and no separate ordering/package-variant table, so t; Pin types are assigned by function (BST as passive, SW as output) because the datasheet does not cla"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0212,
        "at": "2026-10-18T22:02:41"
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        "pages": 6,
        "sha256": "e192c3fa29c39a41",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Slkor SLKORMICRO Elec",
      "Package": "SOT-23-6L",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e192c3fa29c39a411582129d3c46a343c2eaf6f133a2830cb293d536d9c87df9",
      "rows": [
        {
          "name": "Feedback voltage",
          "symbol": "Vfb",
          "kind": "electrical",
          "unit": "V",
          "min": 0.792,
          "typ": 0.812,
          "max": 0.832,
          "conditions": "4.5<Vin<60V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Oscillator frequency",
          "symbol": "Fosc",
          "kind": "electrical",
          "unit": "KHZ",
          "min": 380,
          "typ": 480,
          "max": 580,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limit",
          "symbol": "Ilim",
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          "unit": "A",
          "min": 1,
          "typ": 1.25,
          "max": 1.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-on voltage",
          "symbol": "Vuvlo-r",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": 3.3,
          "max": 3.73,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-off voltage",
          "symbol": "Vuvlo-f",
          "kind": "electrical",
          "unit": "V",
          "min": 2.65,
          "typ": 3.05,
          "max": 3.45,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "Iq",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.73,
          "max": 0.86,
          "conditions": "Ven=2V, Vfb=1V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "Is",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "Ven=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage (recommended)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (recommended)",
          "symbol": "VOUT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.81,
          "typ": null,
          "max": null,
          "conditions": "max printed as 0.95*VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input supply voltage (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 62,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Switch voltage (absolute maximum)",
          "symbol": "VSW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max printed as VIN(MAX)+0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "BST to SW voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "BST to SW",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Other pins voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "other pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Continuous power dissipation",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.568,
          "conditions": "TA=+25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 220,
          "max": null,
          "conditions": "SOT23-6L",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "SOT23-6L",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "SL9459 (Slkor SLKORMICRO Elec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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