RT4812GJ8F

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  "slug": "rt4812gj8f",
  "title": "RT4812GJ8F",
  "brief": "Richtek Tech DC-DC Converters, TSOT-23-8. 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": "RT4812GJ8F",
    "manufacturer": "Richtek Tech",
    "package": "TSOT-23-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589785272977293312",
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      "lbr": "rt4812gj8f.lbr"
    },
    "distributor_links": {
      "lcsc": "C250395",
      "digikey": "1028-1512-2-ND",
      "mouser": "835-RT4812GJ8F"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T19:18:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1028-1512-2-ND",
        "status": "found",
        "lifecycle": "Active"
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        "pn": "835-RT4812GJ8F",
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    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input with a recommended operating range of 1.8V to 5.5V; the input capacitor CIN must be placed as close to the IC as possible."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback input; the regulated FB voltage is typically 0.5V (0.495V to 0.505V), with the resistive divider connected between VOUT, FB and GND."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "power_out",
        "description": "Boost converter output with a 1.8V to 5.5V output voltage range and a 6.2V absolute maximum to GND."
      },
      {
        "number": "4",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the boost power stage; the datasheet gives no further limits for this pin."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground; the datasheet gives no further limits for this pin."
      },
      {
        "number": "6",
        "name": "SW",
        "type": "output",
        "description": "Switching node of the boost converter, rated -0.2V to 6V to GND in the absolute maximum ratings."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Enable input (1 = enabled, 0 = disabled) that must not be left floating, with VIL maximum 0.4V and VIH minimum 1.2V."
      },
      {
        "number": "8",
        "name": "ILIM",
        "type": "input",
        "description": "Average output current limit control pin (H/L): low selects a minimum 1A limit and high selects a minimum 2.1A limit."
      }
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The TOP VIEW pin configuration drawing on page 2 is garbled in the extracted text, so pin positions ; The datasheet does not state pin-level limits for PGND or GND, so their descriptions contain only th"
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        "at": "2026-10-09T19:16:41"
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  "metadata": {
    "specs": {
      "Manufacturer": "Richtek Tech",
      "Package": "TSOT-23-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
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          "name": "Supply Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "VIN vs VOUT, 0.2V margin (comparison operators lost in extraction)",
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        {
          "name": "Output Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "VIN vs VOUT, 0.2V margin (comparison operators lost in extraction)",
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        },
        {
          "name": "Under-Voltage Lockout Rising Threshold",
          "symbol": "UVLO_RISE",
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          "unit": "V",
          "min": 1.5,
          "typ": 1.65,
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          "conditions": "",
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        {
          "name": "Under-Voltage Lockout Falling Threshold",
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          "typ": 1.55,
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        },
        {
          "name": "FB Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.495,
          "typ": 0.5,
          "max": 0.505,
          "conditions": "Force PWM",
          "source_page": 5,
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        },
        {
          "name": "Regulated DC VOUT Voltage",
          "symbol": "VOUT",
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          "source_page": 5,
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        },
        {
          "name": "Shutdown Current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "EN = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Average Output Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "ILIM = L",
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        },
        {
          "name": "Average Output Current Limit",
          "symbol": "ILIM",
          "kind": "electrical",
          "unit": "A",
          "min": 2.1,
          "typ": null,
          "max": null,
          "conditions": "ILIM = H",
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        },
        {
          "name": "FB Pin Input Leakage",
          "symbol": "IFB",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Leakage of SW",
          "symbol": "ISW",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "All switch off",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "VOUT, LINE",
          "kind": "electrical",
          "unit": "%",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "VIN = 2.7V to 4.5V, VOUT = 5V, IOUT = 1500mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "VOUT, LOAD",
          "kind": "electrical",
          "unit": "%",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "CCM, IOUT 2A (operator lost in extraction), VIN = 3.6V, VOUT = 5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Over Voltage Protection",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": 5.8,
          "typ": 6,
          "max": 6.2,
          "conditions": "",
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        },
        {
          "name": "EN Input Low Voltage",
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        {
          "name": "EN Input High Voltage",
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          "typ": null,
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        },
        {
          "name": "EN Sink Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1,
          "conditions": "",
          "source_page": 6,
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        {
          "name": "Input/Output Pin Voltage (VIN, FB, ILIM, EN, SW to GND)",
          "symbol": "",
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          "name": "VOUT to GND",
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        {
          "name": "Power Dissipation",
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          "unit": "W",
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          "conditions": "TSOT-23-8 (FC), TA = 25C",
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        {
          "name": "Lead Temperature (Soldering)",
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          "unit": "°C",
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        {
          "name": "Junction Temperature",
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          "unit": "°C",
          "min": -65,
          "typ": null,
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        {
          "name": "Storage Temperature Range",
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          "unit": "°C",
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          "typ": null,
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        {
          "name": "ESD Susceptibility HBM",
          "symbol": "",
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          "unit": "kV",
          "min": null,
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          "max": 2,
          "conditions": "HBM (Human Body Model)",
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        {
          "name": "Input Voltage Range",
          "symbol": "VIN",
          "kind": "recommended_operating",
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          "min": 1.8,
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        {
          "name": "Output Voltage Range",
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          "name": "Junction Temperature (TJ) Range",
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          "unit": "°C",
          "min": -40,
          "typ": null,
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          "max": 85,
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          "name": "Junction-to-Ambient Thermal Resistance",
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          "name": "Junction-to-Case Thermal Resistance",
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