UC2842BD1

{
  "slug": "uc2842bd1",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics DC-DC Controllers, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "uc2842bd1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2842bd1.kicad_sym",
    "uc2842bd1.kicad_mod",
    "uc2842bd1.glb",
    "uc2842bd1.step",
    "uc2842bd1.lbr",
    "docs/hero.png",
    "docs/uc2842bd1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2842bd1-hero.glb",
    "uc2842bd1-hero.overlay.json",
    "uc2842bd1-etched.glb"
  ],
  "component": {
    "mpn": "UC2842BD1",
    "manufacturer": "STMicroelectronics",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.st.com/resource/en/datasheet/uc2842bd1.pdf",
    "parts": {
      "symbol": "uc2842bd1.kicad_sym",
      "footprint": "uc2842bd1.kicad_mod",
      "model_3d": "uc2842bd1-hero.glb",
      "model_3d_plain": "uc2842bd1-etched.glb",
      "model_3d_step": "uc2842bd1-etched.step",
      "model_3d_step_plain": "uc2842bd1.step",
      "lbr": "uc2842bd1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1529980",
      "digikey": "497-18659-ND",
      "mouser": "511-UC2842BD"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T16:57:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18659-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-UC2842BD",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "This pin is the Error Amplifier output and is made available for loop compensation."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "This is the inverting input of the Error Amplifier, normally connected to the switching power supply output through a resistor divider."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "A voltage proportional to inductor current is connected to this input, and the PWM uses this information to terminate the output switch conduction."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "The oscillator frequency and maximum output duty cycle are programmed by connecting resistor RT to Vref and capacitor CT to ground, and operation to 500kHz is possible."
      },
      {
        "number": "5",
        "name": "GROUND",
        "type": "power_in",
        "description": "This pin is the combined control circuitry and power ground."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "This output directly drives the gate of a power MOSFET, and peak currents up to 1A are sourced and sunk by this pin."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "This pin is the positive supply of the control IC."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "This is the reference output that provides charging current for capacitor CT through resistor RT."
      }
    ],
    "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": [
          "1/8 pins cited to the wrong page (name found elsewhere): ['5:GROUND@p2']"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0143,
        "at": "2026-11-02T16:57:00"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/uc2842bd1.pdf",
        "pages": 15,
        "sha256": "fedfd7362400f8b3",
        "source_tier": "mfr"
      },
      "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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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2842bd1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9a37edf72684234ea2d231180f66f6d8af7b5c7d0c4c8807788dbfa6ea1b72ba",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}