SL4275-G

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  "type": "component",
  "slug": "sl4275-g",
  "title": "SL4275-G",
  "brief": "Slkor(SLKORMICRO Elec.) Linear Voltage Regulators (LDO), TO-263-5. 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",
    "sl4275-g",
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  "component": {
    "mpn": "SL4275-G",
    "manufacturer": "Slkor(SLKORMICRO Elec.)",
    "package": "TO-263-5",
    "pin_count": 6,
    "category": "Power Management",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5e2ecce201db7ab3b4a0985ddec01822.pdf",
    "parts": {
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      "lbr": "sl4275-g.lbr"
    },
    "distributor_links": {
      "lcsc": "C19632473"
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    "distributor_check": {
      "checked_at": "2026-10-27T00:51:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
      {
        "number": "1",
        "name": "I",
        "type": "power_in",
        "description": "Input supply (operating 5.5V to 42V, absolute max 42V); bypass with a ceramic capacitor to ground close to the IC."
      },
      {
        "number": "2",
        "name": "RQ",
        "type": "output",
        "description": "Open-drain reset output that needs an external pull-up resistor and is pulled low when VQ falls below the reset threshold VRT (4.65V typ); may be left floating if unused."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, internally connected to the heat sink tab."
      },
      {
        "number": "4",
        "name": "D",
        "type": "passive",
        "description": "Reset delay pin; connect a capacitor to ground to set the reset delay time (trd = CD*1.8V/6uA); may be left floating if unused, giving about 8us."
      },
      {
        "number": "5",
        "name": "Q",
        "type": "power_out",
        "description": "5V regulated output (4.9V to 5.1V, up to 450mA) requiring a capacitor to ground with CQ ≥ 22uF and ESR < 5Ω at 10kHz."
      },
      {
        "number": "6",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
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        "guards": "pin_guards 0.1: passed",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
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  "metadata": {
    "specs": {
      "Manufacturer": "Slkor(SLKORMICRO Elec.)",
      "Package": "TO-263-5",
      "Category": "Power Management",
      "Pins": "6"
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    "characteristics": {
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          "name": "Input voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 42,
          "conditions": "Tj=-40 to 150°C",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Output voltage",
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          "typ": null,
          "max": 12,
          "conditions": "",
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        {
          "name": "Junction temperature",
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          "conditions": "结温",
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "存储温度",
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        },
        {
          "name": "Thermal resistance junction-ambient",
          "symbol": "Rthj-a",
          "kind": "thermal",
          "unit": "K/W",
          "min": 50,
          "typ": null,
          "max": 90,
          "conditions": "仅管脚",
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        {
          "name": "ESD HBM",
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          "kind": "absolute_maximum",
          "unit": "V",
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          "typ": null,
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          "conditions": "人体模型 JESD22-A114",
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        {
          "name": "ESD CDM",
          "symbol": "VESD-CDM",
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          "min": -1000,
          "typ": null,
          "max": 1000,
          "conditions": "充电设备模型 JESD22-C101E",
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        {
          "name": "Operating voltage",
          "symbol": "VI",
          "kind": "electrical",
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          "min": 5.5,
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          "conditions": "VI=13.5V; -40°C≤Tj≤150°C",
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        {
          "name": "Output voltage",
          "symbol": "VQ",
          "kind": "electrical",
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          "min": 4.9,
          "typ": 5,
          "max": 5.1,
          "conditions": "IQ<450m;VI<42V",
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        {
          "name": "Output current limit",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 800,
          "max": null,
          "conditions": "VI=13.5V",
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          "source": "datasheet"
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        {
          "name": "Quiescent current 1",
          "symbol": "Iq1",
          "kind": "electrical",
          "unit": "uA",
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          "max": 100,
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          "source_page": 5,
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          "name": "Quiescent current 2",
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          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "IQ = 400mA",
          "source_page": 5,
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        {
          "name": "Dropout voltage",
          "symbol": "Vdr",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": 0.5,
          "conditions": "IQ = 300mA",
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          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVQLo",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "5mA<IQ<450mA",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Line regulation",
          "symbol": "ΔVQLi",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "8V<VI<40V,IQ=5mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "[email protected]",
          "source_page": 5,
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        },
        {
          "name": "Output capacitance",
          "symbol": "CQ",
          "kind": "electrical",
          "unit": "uF",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "ESR≤5Ω@10KHZ",
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        },
        {
          "name": "Reset threshold",
          "symbol": "VRT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": 4.65,
          "max": 4.8,
          "conditions": "输出电压跌落",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset hysteresis",
          "symbol": "Vhys",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset response time",
          "symbol": "trr",
          "kind": "timing",
          "unit": "us",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 5,
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        {
          "name": "Reset output low voltage",
          "symbol": "VRQL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "Rext≥5KΩ ;VQ<VRT",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset output leakage current",
          "symbol": "IRQ",
          "kind": "electrical",
          "unit": "uA",
          "min": 0,
          "typ": null,
          "max": 1,
          "conditions": "VRQ=5V",
          "source_page": 5,
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        },
        {
          "name": "Upper timing threshold",
          "symbol": "VDT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.8,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "Lower timing threshold",
          "symbol": "VDL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": 0.4,
          "max": 0.6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Delay capacitor charge current",
          "symbol": "ICharge",
          "kind": "electrical",
          "unit": "uA",
          "min": 3,
          "typ": 6,
          "max": 9,
          "conditions": "VD=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset delay time",
          "symbol": "trd",
          "kind": "timing",
          "unit": "ms",
          "min": 10,
          "typ": 15,
          "max": 20,
          "conditions": "CD=47nF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset delay time, no capacitor",
          "symbol": "trd",
          "kind": "timing",
          "unit": "us",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "引脚无电容",
          "source_page": 5,
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          "name": "Thermal resistance junction-case",
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          "kind": "thermal",
          "unit": "K/W",
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          "typ": 3.6,
          "max": null,
          "conditions": "测量散热基座",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Thermal resistance junction-ambient",
          "symbol": "RthJA",
          "kind": "thermal",
          "unit": "K/W",
          "min": null,
          "typ": 22,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-ambient, pins only",
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          "kind": "thermal",
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          "min": null,
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          "max": 74,
          "conditions": "仅引脚",
          "source_page": 4,
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        {
          "name": "Thermal resistance junction-ambient, 300 mm2 heatsink",
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          "unit": "K/W",
          "min": null,
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          "name": "Thermal resistance junction-ambient, 600 mm2 heatsink",
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