UCC2801PW

{
  "slug": "ucc2801pw",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "ucc2801pw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ucc2801pw.kicad_sym",
    "ucc2801pw.kicad_mod",
    "ucc2801pw.glb",
    "ucc2801pw.step",
    "ucc2801pw.lbr",
    "docs/hero.png",
    "docs/ucc2801pw-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ucc2801pw-hero.glb",
    "ucc2801pw-hero.overlay.json"
  ],
  "component": {
    "mpn": "UCC2801PW",
    "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/ucc2801.pdf",
    "parts": {
      "symbol": "ucc2801pw.kicad_sym",
      "footprint": "ucc2801pw.kicad_mod",
      "model_3d": "ucc2801pw-hero.glb",
      "model_3d_plain": "ucc2801pw.glb",
      "model_3d_step": "ucc2801pw-etched.step",
      "model_3d_step_plain": "ucc2801pw.step",
      "lbr": "ucc2801pw.lbr"
    },
    "distributor_links": {
      "lcsc": "C1530282",
      "digikey": "296-32783-ND",
      "mouser": "595-UCC2801PW"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T22:05:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-32783-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UCC2801PW",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "COMP is the output of the error amplifier and the input of the PWM comparator; the error amplifier is a low output impedance 2-MHz amplifier that can both source and sink current, is internally current-limited, and zero duty cycle can be commanded by forcing COMP to GND."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "FB is the inverting input of the error amplifier, and for best stability its lead length and stray capacitance should be kept as short and small as possible."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "CS is the input to the PWM and overcurrent comparators, with 100 ns of digital leading-edge blanking after the rising edge of OUT, and exceeding the overcurrent threshold causes a soft-start cycle."
      },
      {
        "number": "4",
        "name": "RC",
        "type": "input",
        "description": "RC is the oscillator timing pin, with a timing resistor from REF to RC (recommended 10 kΩ to 200 kΩ, never less than 10 kΩ) and a timing capacitor from RC to GND (recommended 100 pF to 1000 pF)."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "GND is the reference ground and power ground for all functions on the part."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "OUT is the high-current totem-pole gate driver output, capable of peak currents exceeding ±750 mA (absolute maximum ±1 A), and is actively held low when VCC is below the UVLO threshold."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "VCC is the power input, which must be bypassed with a minimum of 1 µF in parallel with a 0.1 µF ceramic capacitor placed close to the device, and the absolute maximum VCC is 12 V when driven from a low-impedance source with ICC not exceeding 30 mA."
      },
      {
        "number": "8",
        "name": "REF",
        "type": "power_out",
        "description": "REF is the voltage reference output (5 V nominal on UCC2801) for the error amplifier and other functions, requires a minimum of 0.1 µF ceramic bypass to GND, and needs additional bypassing for external loads above 2.5 mA."
      }
    ],
    "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 numbers are taken from Figure 5-2 (PW Package 8-Pin TSSOP Top View, page 3). The Table 5-1 pin f; The Table 5-1 type for COMP and REF is printed as 'O'; they are mapped here to output and power_out ; Per the package option addendum (page 42), UCC2801PW is listed as NRND (not recommended for new desi"
        ],
        "pages_sent": 22,
        "cost_usd": 0.134,
        "at": "2026-10-08T22:04:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/ucc2801.pdf",
        "pages": 60,
        "sha256": "4ea6450f4489b173",
        "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": [
      {
        "file": "ucc2801pw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ucc2801pw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "894385db51b3e87920c934513afce447acdd64230a7a83d8ea912e79934fb6d2",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}