UC2856QDWRQ1

{
  "slug": "uc2856qdwrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Converters, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "uc2856qdwrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2856qdwrq1.kicad_sym",
    "uc2856qdwrq1.kicad_mod",
    "uc2856qdwrq1.glb",
    "uc2856qdwrq1.step",
    "uc2856qdwrq1.lbr",
    "docs/hero.png",
    "docs/uc2856qdwrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2856qdwrq1-hero.glb",
    "uc2856qdwrq1-hero.overlay.json"
  ],
  "component": {
    "mpn": "UC2856QDWRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc2856-q1",
    "parts": {
      "symbol": "uc2856qdwrq1.kicad_sym",
      "footprint": "uc2856qdwrq1.kicad_mod",
      "model_3d": "uc2856qdwrq1-hero.glb",
      "model_3d_plain": "uc2856qdwrq1.glb",
      "model_3d_step": "uc2856qdwrq1-etched.step",
      "model_3d_step_plain": "uc2856qdwrq1.step",
      "lbr": "uc2856qdwrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658044",
      "digikey": "296-23442-2-ND",
      "mouser": "595-UC2856QDWRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:50:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-23442-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC2856QDWRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CL SS",
        "type": "input",
        "description": "Current-limit adjust and soft-start terminal; the current drawn into this pin determines whether the shutdown circuit latches or auto-restarts (Figure 7 and footnotes 5 and 6 of the electrical table)."
      },
      {
        "number": "2",
        "name": "VREF",
        "type": "power_out",
        "description": "5.1-V reference output (5.05 V to 5.15 V at IO = 1 mA, TJ = 25°C); short-circuit current is -25 mA to -65 mA with VREF = 0 V."
      },
      {
        "number": "3",
        "name": "CS−",
        "type": "input",
        "description": "Inverting input of the current-sense amplifier; input common-mode range is 0 V to 3 V."
      },
      {
        "number": "4",
        "name": "CS+",
        "type": "input",
        "description": "Non-inverting input of the current-sense amplifier; input common-mode range is 0 V to 3 V."
      },
      {
        "number": "5",
        "name": "EA+",
        "type": "input",
        "description": "Non-inverting input of the error amplifier; common-mode range is 0 V to VIN - 2 V."
      },
      {
        "number": "6",
        "name": "EA−",
        "type": "input",
        "description": "Inverting input of the error amplifier; common-mode range is 0 V to VIN - 2 V."
      },
      {
        "number": "7",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output and compensation node; the error amplifier can source up to 0.5 mA."
      },
      {
        "number": "8",
        "name": "CT",
        "type": "passive",
        "description": "Oscillator timing capacitor connection; the output deadtime is determined by the size of CT."
      },
      {
        "number": "9",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator timing resistor connection; oscillator frequency is set by RT and CT (characterized with RT = 10 kΩ and CT = 1 nF)."
      },
      {
        "number": "10",
        "name": "SYNC",
        "type": "bidirectional",
        "description": "TTL-compatible oscillator sync pin: as an output it provides VOH of 2.4 V minimum at -1 mA and VOL of 0.4 V maximum at 1 mA, and it is 3-stated when used as a sync input."
      },
      {
        "number": "11",
        "name": "AOUT",
        "type": "output",
        "description": "Totem-pole output driver A; absolute maximum output current is 0.5 A DC or 2 A pulse (0.5 ms)."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all device voltages; all voltages are specified with respect to GND."
      },
      {
        "number": "13",
        "name": "VC",
        "type": "power_in",
        "description": "Collector supply for the output stages; absolute maximum collector supply voltage is 40 V."
      },
      {
        "number": "14",
        "name": "BOUT",
        "type": "output",
        "description": "Totem-pole output driver B; absolute maximum output current is 0.5 A DC or 2 A pulse (0.5 ms)."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Supply voltage input; absolute maximum is 40 V, and the undervoltage lockout startup threshold is 8 V typical."
      },
      {
        "number": "16",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Shutdown input with a 1.0 V threshold (0.95 V to 1.05 V) and an input voltage range of 0 V to 5 V; absolute maximum is -0.3 V to 10 V."
      }
    ],
    "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 were derived by matching the top-view pin label order (page 1) with the block-diagram pi; The datasheet's Shutdown table row for minimum/maximum latching current into CL SS has unclear min/t; The datasheet gives the DW package as a 16-pin SOIC with a 7.5 mm wide body (7.5 x 10.3 mm outline);"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0743,
        "at": "2026-10-08T15:49:57"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc2856-q1",
        "pages": 19,
        "sha256": "51576f2bd2b22621",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "uc2856qdwrq1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2856qdwrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9ddbcbea550bc2f44551c885750e9a7eb42598388d07f18e14e74a7a181b681c",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}