UCC28C53QDRQ1

{
  "slug": "ucc28c53qdrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ucc28c53qdrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc28c53qdrq1.kicad_sym",
    "ucc28c53qdrq1.kicad_mod",
    "ucc28c53qdrq1.glb",
    "ucc28c53qdrq1.step",
    "ucc28c53qdrq1.lbr",
    "docs/hero.png",
    "docs/ucc28c53qdrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc28c53qdrq1-hero.glb",
    "ucc28c53qdrq1-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC28C53QDRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923826085502976",
    "parts": {
      "symbol": "ucc28c53qdrq1.kicad_sym",
      "footprint": "ucc28c53qdrq1.kicad_mod",
      "model_3d": "ucc28c53qdrq1-hero.glb",
      "model_3d_plain": "ucc28c53qdrq1.glb",
      "model_3d_step": "ucc28c53qdrq1-etched.step",
      "model_3d_step_plain": "ucc28c53qdrq1.step",
      "lbr": "ucc28c53qdrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C20346033",
      "digikey": "296-UCC28C53QDRQ1TR-ND",
      "mouser": "595-UCC28C53QDRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T16:02:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-UCC28C53QDRQ1TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-UCC28C53QDRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output for compensation that can both source and sink current, is internally current-limited, and can be forced to GND to command zero duty cycle."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Inverting input of the error amplifier, with the non-inverting input internally trimmed to 2.5 V ±1%."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Primary-side current sense input to the PWM comparator that terminates OUT conduction, with a typical current sense amplifier gain of 3 V/V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "bidirectional",
        "description": "Oscillator timing pin where a resistor from VREF and a capacitor to GND set the fixed switching frequency, with TI recommending 1 kΩ to 100 kΩ resistors and 220 pF to 4.7 nF capacitors for operation up to 1 MHz."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the output driver stage and the logic-level controller section, which TI recommends keeping separate from the signal return path."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Totem-pole gate drive output that sources and sinks up to 1 A peak, is held low when VDD is below the turn-on threshold, and for UCC28C53 switches at the oscillator frequency and can operate near 100% duty cycle."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Analog controller bias supply input whose total current is the quiescent VDD current plus the average OUT current, and which requires a minimum 0.1 µF bypass capacitor connected directly to GND."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "5-V reference output that requires a minimum 0.1 µF ceramic bypass placed as close to the pin as possible, and no external voltage higher than VREF may be superimposed on it."
      }
    ],
    "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: Pin types were mapped to KiCad classes from the datasheet's I/O column: RT/CT is I/O and was mapped ; The pin table (Figure 6-1 and Table 6-1) covers the whole UCC28C5x-Q1 family, and the pin assignment"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0725,
        "at": "2026-10-10T16:02:12"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923826085502976",
        "pages": 54,
        "sha256": "17e157e3c78ffd7e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "ucc28c53qdrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc28c53qdrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "089fd58fc5ab9f597fc98696078d5572093e4bd60fe3e8cce1bb718ef0c1742b",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}