LM4040D30QDBZR

{
  "slug": "lm4040d30qdbzr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "lm4040d30qdbzr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4040d30qdbzr.kicad_sym",
    "lm4040d30qdbzr.kicad_mod",
    "lm4040d30qdbzr.glb",
    "lm4040d30qdbzr.step",
    "lm4040d30qdbzr.lbr",
    "docs/hero.png",
    "docs/lm4040d30qdbzr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4040d30qdbzr-hero.glb",
    "lm4040d30qdbzr-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM4040D30QDBZR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4040",
    "parts": {
      "symbol": "lm4040d30qdbzr.kicad_sym",
      "footprint": "lm4040d30qdbzr.kicad_mod",
      "model_3d": "lm4040d30qdbzr-hero.glb",
      "model_3d_plain": "lm4040d30qdbzr.glb",
      "model_3d_step": "lm4040d30qdbzr-etched.step",
      "model_3d_step_plain": "lm4040d30qdbzr.step",
      "lbr": "lm4040d30qdbzr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2868666",
      "digikey": "296-20903-2-ND",
      "mouser": "595-LM4040D30QDBZR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:30:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-20903-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-LM4040D30QDBZR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Parallel current/voltage input; the device regulates the voltage between cathode and anode and needs at least the minimum cathode current IZ,min to regulate, with recommended cathode current up to 15 mA and absolute maximum continuous cathode current of 25 mA."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "General-purpose pin that is usually grounded, and it forms the other terminal of the shunt reference with the cathode."
      },
      {
        "number": "3",
        "name": "*",
        "type": "passive",
        "description": "Must be left floating or connected to the anode; TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise, because a parasitic Schottky diode sits between pins 2 and 3 in the SOT-23 package."
      }
    ],
    "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 labels CATHODE as I/O and ANODE as O, which do not map cleanly to KiCad classes for a ; Pin 3 is printed as '*' in Table 5-1 and Figure 5-1 and has no functional name. It is set to passive; The datasheet covers many LM4040 variants and the DBZ pinout is shared across them. The Package Opti"
        ],
        "pages_sent": 26,
        "cost_usd": 0.1784,
        "at": "2026-10-08T23:29:45"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4040",
        "pages": 62,
        "sha256": "68faec55d71e5cd5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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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": [
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          3.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4040d30qdbzr-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": "1771946b01f1260561bb97cd595f65dd5dce56a251f71bd4c38d12b21bfeb372",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}