LM4050AEM3-2.5

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm4050aem3-2-5",
  "title": "LM4050AEM3-2.5",
  "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)",
    "lm4050aem3-2.5",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM4050AEM3-2.5",
    "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",
    "parts": {
      "symbol": "lm4050aem3-2-5.kicad_sym",
      "footprint": "lm4050aem3-2-5.kicad_mod",
      "model_3d": "lm4050aem3-2-5-hero.glb",
      "model_3d_plain": "lm4050aem3-2-5.glb",
      "model_3d_step": "lm4050aem3-2-5-etched.step",
      "model_3d_step_plain": "lm4050aem3-2-5.step",
      "lbr": "lm4050aem3-2-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C2156518",
      "digikey": "LM4050AEM3-2.5TR-ND",
      "mouser": "926-LM4050AEM3-25"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T23:52:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM4050AEM3-2.5TR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-LM4050AEM3-25",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "bidirectional",
        "description": "Carries the shunt current and the input voltage; the regulated reverse breakdown voltage depends on the cathode current, which is limited to 20 mA reverse current (absolute maximum) and 15 mA maximum operating current."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "output",
        "description": "General-purpose pin that is normally grounded and serves as the reference node for the regulated voltage; absolute maximum forward current is 10 mA."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection, but it must be left floating or tied to pin 2 (anode) because the SOT-23 package has a parasitic Schottky diode between pins 2 and 3; TI recommends tying it to the anode in high-EMI or high-frequency switching environments."
      }
    ],
    "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 pin table (Chinese text) labels pin 1 as 负极 (negative = cathode), pin 2 as 正极 (positiv; KiCad types were mapped from the datasheet's own I/O column: Cathode 'I/O' -> bidirectional, Anode '; The page 7 (2.5V electrical characteristics) and the minimum/maximum operating current values specif"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1275,
        "at": "2026-10-07T23:51:52"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4050-n",
        "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": "lm4050aem3-2-5.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4050aem3-2-5-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c1d2973f035c581429e391cb5bc5d1be8a21e718dfca98a6e8962fc22fb7c6c0",
        "checked": "2026-10-07",
        "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": [
    "lm4050aem3-2.5"
  ],
  "discovery_pitch": "LM4050AEM3-2.5 (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",
    "lm4050aem3-2-5.kicad_sym",
    "lm4050aem3-2-5.kicad_mod",
    "lm4050aem3-2-5.glb",
    "lm4050aem3-2-5.step",
    "lm4050aem3-2-5.lbr",
    "docs/hero.png",
    "docs/lm4050aem3-2-5-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4050aem3-2-5-hero.glb",
    "lm4050aem3-2-5-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}