LKQ4919ST

{
  "slug": "lkq4919st",
  "version": "0.1.0",
  "type": "component",
  "description": "LKWIC Supervisor And Reset ICs, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lkq4919st",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lkq4919st.kicad_sym",
    "lkq4919st.kicad_mod",
    "lkq4919st.glb",
    "lkq4919st.step",
    "lkq4919st.lbr",
    "docs/hero.png",
    "docs/lkq4919st-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lkq4919st-hero.glb",
    "lkq4919st-hero.overlay.json",
    "lkq4919st-etched.glb"
  ],
  "component": {
    "mpn": "LKQ4919ST",
    "manufacturer": "LKWIC",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9b176103312d2c037adbe264185c526c.pdf",
    "parts": {
      "symbol": "lkq4919st.kicad_sym",
      "footprint": "lkq4919st.kicad_mod",
      "model_3d": "lkq4919st-hero.glb",
      "model_3d_plain": "lkq4919st-etched.glb",
      "model_3d_step": "lkq4919st-etched.step",
      "model_3d_step_plain": "lkq4919st.step",
      "lbr": "lkq4919st.lbr"
    },
    "distributor_links": {
      "lcsc": "C48639165"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T21:37:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RESET#",
        "type": "output",
        "description": "Open-drain reset output that is driven low when SENSE falls below VIT or MR# is at logic low, and needs a 10kΩ to 1MΩ pull-up to VDD (it may be pulled above VDD)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "3",
        "name": "MR#",
        "type": "input",
        "description": "Manual reset input; driving it low asserts RESET#, and it has an internal 100kΩ pull-up to VDD."
      },
      {
        "number": "4",
        "name": "CT",
        "type": "passive",
        "description": "Reset timeout delay pin: connecting it to VDD through a 40kΩ to 200kΩ resistor or leaving it open gives a fixed delay, while a grounded capacitor of at least 100pF sets a user-programmable delay."
      },
      {
        "number": "5",
        "name": "SENSE",
        "type": "input",
        "description": "Voltage monitor input; RESET# is asserted when the voltage on this pin falls below the threshold VIT."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin."
      }
    ],
    "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: The datasheet gives the pin numbering in Table 1 (section 4.1) but the top-view pinout drawing (Figu; The datasheet lists only one SOT23-6 package for LKQ4919ST, so the package variant is unambiguous. T"
        ],
        "pages_sent": 11,
        "cost_usd": 0.032,
        "at": "2026-10-17T21:35:03"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9b176103312d2c037adbe264185c526c.pdf",
        "pages": 11,
        "sha256": "f6629aec41038312",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lkq4919st.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lkq4919st-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b94d4c0dbcea5f1f2024d8407ce1562e2edbca5c22dbefbf3571ba45f6a5cbe2",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}