LM4050QCEM3X5.0

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm4050qcem3x5-0",
  "title": "LM4050QCEM3X5.0",
  "brief": "Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "lm4050qcem3x5.0",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM4050QCEM3X5.0",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4050-n-q1",
    "parts": {
      "symbol": "lm4050qcem3x5-0.kicad_sym",
      "footprint": "lm4050qcem3x5-0.kicad_mod",
      "model_3d": "lm4050qcem3x5-0-hero.glb",
      "model_3d_plain": "lm4050qcem3x5-0.glb",
      "model_3d_step": "lm4050qcem3x5-0-etched.step",
      "model_3d_step_plain": "lm4050qcem3x5-0.step",
      "lbr": "lm4050qcem3x5-0.lbr"
    },
    "distributor_links": {
      "lcsc": "C2157252"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:26:50Z",
      "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 reference regulates the voltage between cathode and anode, which depends on the current supplied to the cathode, and that current must stay within the datasheet's minimum regulation current and 15 mA maximum operating current."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "General-purpose pin that is normally connected to ground and serves as the negative (−) reference terminal; on SOT-23 devices a parasitic Schottky diode exists between this pin and pin 3."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; this pin must be left floating or connected to pin 2 (anode), 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 is a Chinese translation. Table 4-1 labels pin 1 as 负极 (negative) and pin 2 as 正极 (pos; KiCad type mapping is my interpretation. The datasheet lists pin 1 as I/O and pin 2 as O; I mapped p; The datasheet's pinout covers the LM4050-N / -Q1 family in SOT-23 (DBZ). The MPN LM4050QCEM3X5.0 app"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1291,
        "at": "2026-10-08T19:26:30"
      },
      "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": "lm4050qcem3x5-0.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4050qcem3x5-0-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "aed15fa67de6d159b05306090fdb13acc8b2d9e9e5c3f94669d0b116bbdd3d2b",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm4050qcem3x5.0"
  ],
  "discovery_pitch": "LM4050QCEM3X5.0 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4050qcem3x5-0.kicad_sym",
    "lm4050qcem3x5-0.kicad_mod",
    "lm4050qcem3x5-0.glb",
    "lm4050qcem3x5-0.step",
    "lm4050qcem3x5-0.lbr",
    "docs/hero.png",
    "docs/lm4050qcem3x5-0-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4050qcem3x5-0-hero.glb",
    "lm4050qcem3x5-0-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}