LM4040D20IDBZT

{
  "slug": "lm4040d20idbzt",
  "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)",
    "lm4040d20idbzt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4040d20idbzt.kicad_sym",
    "lm4040d20idbzt.kicad_mod",
    "lm4040d20idbzt.glb",
    "lm4040d20idbzt.step",
    "lm4040d20idbzt.lbr",
    "docs/hero.png",
    "docs/lm4040d20idbzt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4040d20idbzt-hero.glb",
    "lm4040d20idbzt-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM4040D20IDBZT",
    "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": "lm4040d20idbzt.kicad_sym",
      "footprint": "lm4040d20idbzt.kicad_mod",
      "model_3d": "lm4040d20idbzt-hero.glb",
      "model_3d_plain": "lm4040d20idbzt.glb",
      "model_3d_step": "lm4040d20idbzt-etched.step",
      "model_3d_step_plain": "lm4040d20idbzt.step",
      "lbr": "lm4040d20idbzt.lbr"
    },
    "distributor_links": {
      "lcsc": "C2157764",
      "digikey": "296-32119-2-ND",
      "mouser": "595-LM4040D20IDBZT"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T15:45:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-32119-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-LM4040D20IDBZT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "bidirectional",
        "description": "Parallel current/voltage input; the regulated reverse breakdown voltage (VZ = 2.048 V) is developed between cathode and anode, and cathode current IZ must stay within the datasheet range (IZ,min to 15 mA recommended, 25 mA absolute maximum)."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "output",
        "description": "General-purpose pin, typically grounded, and the reference for the regulated voltage on the cathode."
      },
      {
        "number": "3",
        "name": "*",
        "type": "input",
        "description": "Must be left floating or connected to the anode (pin 2), because a parasitic Schottky diode exists between pins 2 and 3 of the SOT-23 package; TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise."
      }
    ],
    "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 3 has no name in the datasheet; it is printed only as '*' in the pin table and figure, so the na; Pin types follow the datasheet's pin-table classification (CATHODE I/O -> bidirectional, ANODE O -> ; The datasheet covers the LM4040D20I family (2.048 V, grade D, -40 to 85 C). The pinout is shared acr",
          "1/3 pins cited to the wrong page (name found elsewhere): ['3:*@p28']"
        ],
        "pages_sent": 26,
        "cost_usd": 0.1721,
        "at": "2026-10-10T15:44:55"
      },
      "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": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm4040d20idbzt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4040d20idbzt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f36bb9c239e6a9ba3d15761952fa1071856b1aee983f80bee0dc70af19aad552",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}