LM4050QBEM3X2.5

{
  "slug": "lm4050qbem3x2-5",
  "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)",
    "lm4050qbem3x2.5",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4050qbem3x2-5.kicad_sym",
    "lm4050qbem3x2-5.kicad_mod",
    "lm4050qbem3x2-5.glb",
    "lm4050qbem3x2-5.step",
    "lm4050qbem3x2-5.lbr",
    "docs/hero.png",
    "docs/lm4050qbem3x2-5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4050qbem3x2-5-hero.glb",
    "lm4050qbem3x2-5-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM4050QBEM3X2.5",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4050-n-q1",
    "parts": {
      "symbol": "lm4050qbem3x2-5.kicad_sym",
      "footprint": "lm4050qbem3x2-5.kicad_mod",
      "model_3d": "lm4050qbem3x2-5-hero.glb",
      "model_3d_plain": "lm4050qbem3x2-5.glb",
      "model_3d_step": "lm4050qbem3x2-5-etched.step",
      "model_3d_step_plain": "lm4050qbem3x2-5.step",
      "lbr": "lm4050qbem3x2-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C2157142"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T07:23:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "bidirectional",
        "description": "Shunt current and input voltage pin; the cathode current must stay at or above the minimum operating current (IRMIN) and below the 15 mA maximum operating current for the reference to regulate."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "output",
        "description": "General-purpose pin, usually grounded; in SOT-23 packages it has a parasitic Schottky diode to pin 3 that is why pin 3 must be left floating or tied to this pin."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; it must be left floating or connected to pin 2, and 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: The datasheet's pin table gives pin 2 (anode) only as 'O' and describes it as a general-purpose pin ; Pin 1 is listed as I/O in the datasheet table and is mapped to KiCad 'bidirectional'. The datasheet ; Pin 3 description is partly from section 8.1 (parasitic Schottky note) and the table footnote; confi"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1203,
        "at": "2026-10-11T07:23:33"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4050-n-q1",
        "pages": 47,
        "sha256": "02a99aa1f022863b",
        "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": "lm4050qbem3x2-5.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": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4050qbem3x2-5-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": "9a2cde8852db145442c9f41ea5d8f33ee5689bf09b9e35a907bd014c2e4a3026",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}