UC3844G-SO8-R

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  "slug": "uc3844g-so8-r",
  "title": "UC3844G-SO8-R",
  "brief": "UTC Unisonic Tech AC-DC Controllers And Regulators, SOP-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": [
    "component",
    "power management (pmic)",
    "uc3844g-so8-r",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "UC3844G-SO8-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586196549763780608",
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      "lbr": "uc3844g-so8-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C87304"
    },
    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "Compensation",
        "type": "output",
        "description": "Error amplifier output, made available for loop compensation."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Inverting input of the error amplifier, normally connected to the switching power supply output through a resistor divider; the current sense and voltage feedback inputs are rated -0.3 V to +5.5 V."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Input proportional to inductor current that the PWM uses to terminate output switch conduction, with a maximum current sense input threshold of 0.9 V to 1.1 V (1.0 V typical)."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing pin: resistor RT connects to Vref and capacitor CT to ground to program the oscillator frequency and maximum output duty cycle, and operation to 1 MHz is possible."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "6",
        "name": "Output",
        "type": "output",
        "description": "Directly drives the gate of a power MOSFET, sourcing and sinking peak currents up to 1 A, and switches at one-half the oscillator frequency."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply; the total power supply and zener current (ICC+IZ) is rated at 30 mA maximum."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "Reference output that provides charging current for capacitor CT through resistor RT, with a reference output voltage of 4.9 V to 5.1 V at IOUT = 1.0 mA and TJ = 25°C."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN is written UC3844G-SO8-R, but the datasheet ordering table lists UC3844G-S08-R as the SOP-8 ; The pin table on page 2 gives one numbering and one set of names for the device. The pin configurati; Pin types are assigned from the functional descriptions because the datasheet does not state electri"
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        "at": "2026-10-18T02:01:18"
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  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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          "name": "Open Loop Voltage Gain",
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          "name": "Unity Gain Bandwidth",
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          "kind": "electrical",
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          "name": "Current Sense Input Voltage Gain",
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          "name": "Maximum Current Sense Input Threshold",
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          "name": "Propagation Delay",
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