UCC38084PWR

{
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  "type": "component",
  "slug": "ucc38084pwr",
  "title": "UCC38084PWR",
  "brief": "Texas Instruments DC-DC Controllers, TSSOP-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 supply chip",
    "ucc38084pwr",
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  "component": {
    "mpn": "UCC38084PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc38084.pdf",
    "parts": {
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    "distributor_links": {
      "lcsc": "C2658002",
      "digikey": "296-44035-2-ND",
      "mouser": "595-UCC38084PWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:52:15Z",
      "source": "Component Ocean /api/assign-pns",
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        "status": "found",
        "lifecycle": "Active"
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    },
    "pins": [
      {
        "number": "1",
        "name": "OUTB",
        "type": "output",
        "description": "Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Reference ground and power ground for all functions; due to high currents and high-frequency operation, a low-impedance circuit board ground plane is highly recommended."
      },
      {
        "number": "3",
        "name": "RT",
        "type": "input",
        "description": "Oscillator programming pin; an external resistor to GND sets the oscillator frequency, with a recommended timing resistor range of 25 kΩ to 698 kΩ and a nominal RT voltage of 1.5 V (1.2 V to 1.6 V)."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current-sense input to the PWM comparator, cycle-by-cycle peak current comparator and overcurrent comparator; exceeding the overcurrent threshold (0.75 V typical) causes a soft-start cycle, and an internal MOSFET discharges the CS filter capacitor."
      },
      {
        "number": "5",
        "name": "ISET",
        "type": "input",
        "description": "Current selection for slope compensation; a resistor RSET from ISET to GND programs the slope-compensation ramp, with IRAMP peak equal to 5 × ISET peak."
      },
      {
        "number": "6",
        "name": "CTRL",
        "type": "input",
        "description": "Error voltage input to the PWM comparator, with an internal divider ratio of 0.45 to maintain a usable range with the minimum VDD of 4.1 V."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Power input connection with an absolute maximum supply voltage of 15 V (IDD < 10 mA); a 1-µF decoupling capacitor to GND is recommended."
      },
      {
        "number": "8",
        "name": "OUTA",
        "type": "output",
        "description": "Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency."
      }
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        "at": "2026-10-08T15:52:00"
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        "pages": 28,
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        "source_tier": "mfr"
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  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
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          "name": "Current sense gain",
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          "unit": "V/V",
          "min": 1.9,
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          "name": "Maximum input signal voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.47,
          "typ": 0.52,
          "max": 0.57,
          "conditions": "CTRL = 5 V, See Note 4",
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          "source": "datasheet"
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        {
          "name": "CS to output delay time",
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          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": 200,
          "conditions": "CTRL = 3.5 V, 0 mV ≤ CS ≤ 600 mV",
          "source_page": 4,
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          "unit": "nA",
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          "name": "Sink current",
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          "unit": "mA",
          "min": 3,
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          "conditions": "CS = 0.5 V, RT = 2.0 V, See Note 5",
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        {
          "name": "Overcurrent threshold voltage",
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          "kind": "electrical",
          "unit": "V",
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          "name": "CTRL to CS offset voltage (25°C)",
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        {
          "name": "CTRL to CS offset voltage",
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          "unit": "V",
          "min": 0.37,
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          "name": "Maximum duty cycle",
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          "unit": "%",
          "min": 48,
          "typ": 49,
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          "conditions": "Measured at OUTA or OUTB, See Note 7",
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          "name": "Minimum duty cycle",
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          "name": "Low-level output voltage (OUTA or OUTB)",
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          "kind": "electrical",
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          "conditions": "IOUT = 100 mA",
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          "name": "High-level output voltage (OUTA or OUTB)",
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          "conditions": "IOUT = −50 mA, See Note 6",
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          "conditions": "ISET, peak = 30 µA, Full duty cycle",
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          "name": "Thermal resistance junction-to-case (PW)",
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          "kind": "thermal",
          "unit": "°C/W",
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          "typ": 32,
          "max": null,
          "conditions": "Note 2 (modeled data)",
          "source_page": 2,
          "source": "datasheet"
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          "name": "Thermal resistance junction-to-ambient (PW)",
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          "conditions": "Modeled data (Note 2): lower value 3x3 inch board, higher value 1x1 inch ground plane",
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