REF3440QDGKRQ1

{
  "slug": "ref3440qdgkrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage References, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "ref3440qdgkrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ref3440qdgkrq1.kicad_sym",
    "ref3440qdgkrq1.kicad_mod",
    "ref3440qdgkrq1.glb",
    "ref3440qdgkrq1.step",
    "ref3440qdgkrq1.lbr",
    "docs/hero.png",
    "docs/ref3440qdgkrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ref3440qdgkrq1-hero.glb",
    "ref3440qdgkrq1-hero.overlay.json"
  ],
  "component": {
    "mpn": "REF3440QDGKRQ1",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8-0.65mm",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "Voltage References",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ref34-q1",
    "parts": {
      "symbol": "ref3440qdgkrq1.kicad_sym",
      "footprint": "ref3440qdgkrq1.kicad_mod",
      "model_3d": "ref3440qdgkrq1-hero.glb",
      "model_3d_plain": "ref3440qdgkrq1.glb",
      "model_3d_step": "ref3440qdgkrq1-etched.step",
      "model_3d_step_plain": "ref3440qdgkrq1.step",
      "lbr": "ref3440qdgkrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1518738",
      "digikey": "296-REF3440QDGKRQ1TR-ND",
      "mouser": "595-REF3440QDGKRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T14:34:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-REF3440QDGKRQ1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-REF3440QDGKRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ENABLE",
        "type": "input",
        "description": "Enable input that turns the device on or puts it in low-power shutdown; the datasheet gives the operating mode at EN of 1.6 V or higher and shutdown at 0.5 V or lower, and EN must not be pulled above VIN."
      },
      {
        "number": "2",
        "name": "GND_S",
        "type": "power_in",
        "description": "Ground sense connection of the Kelvin (force/sense) pair, carrying negligible current, and it may be tied to GND_F where IR drop is negligible."
      },
      {
        "number": "3",
        "name": "GND_F",
        "type": "power_in",
        "description": "Ground force connection that carries the load return current, and it may be tied to GND_S where IR drop is negligible."
      },
      {
        "number": "4",
        "name": "NIC",
        "type": "unconnected",
        "description": "No internal connection; the datasheet assigns no function to this pin."
      },
      {
        "number": "5",
        "name": "NIC",
        "type": "unconnected",
        "description": "No internal connection; the datasheet assigns no function to this pin."
      },
      {
        "number": "6",
        "name": "OUT_F",
        "type": "output",
        "description": "Reference voltage output force connection that sources or sinks load current limited to ±10 mA, with a short-circuit current of 18 mA typical (22 mA max) at 25°C."
      },
      {
        "number": "7",
        "name": "OUT_S",
        "type": "output",
        "description": "Reference voltage output sense connection used with OUT_F to remove IR-drop error from the reference output at the load."
      },
      {
        "number": "8",
        "name": "IN",
        "type": "power_in",
        "description": "Input supply connection; VIN must be at least VOUT + VDO (dropout) and the recommended maximum is 12 V (absolute maximum 13 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: The DGK pin table and pin diagram on page 3 are the source for pins 1-8; the figure shows pin 3 as G; The ENABLE row description in the Chinese translation reads '使用连接' (apparently a translation artifac; The datasheet is a Chinese translation of SBAS901; TI states the English version is the controlling "
        ],
        "pages_sent": 20,
        "cost_usd": 0.1033,
        "at": "2026-10-08T14:34:26"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ref34-q1",
        "pages": 40,
        "sha256": "addb0b3508cd0c2e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
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          0.85
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ref3440qdgkrq1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c1ec27f07d0ab4f088785d75c10c951912ad61ad35c0d5ad8339045ea248f746",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}