LM4050BEM3-2.5

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  "slug": "lm4050bem3-2-5",
  "title": "LM4050BEM3-2.5",
  "brief": "Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "LM4050BEM3-2.5",
    "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",
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      "lbr": "lm4050bem3-2-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C2157690",
      "digikey": "2156-LM4050BEM3-2.5-296-ND",
      "mouser": "926-LM4050BEM3-25"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:43:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-LM4050BEM3-2.5-296-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "926-LM4050BEM3-25",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "bidirectional",
        "description": "Cathode (datasheet name: 负极) carries the shunt current and sets the input voltage; the device is rated for a maximum reverse current of 20 mA, and the cathode current must stay within the minimum and maximum operating current limits."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "output",
        "description": "Anode (datasheet name: 正极) is the general-purpose reference pin, normally connected to ground; the parasitic Schottky diode between pin 2 and pin 3 requires pin 3 to float or be tied to this pin."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection, but this pin must be left floating or connected to pin 2 (anode) because of a parasitic Schottky diode; 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",
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        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the pinout for the SOT-23 (DBZ) 3-pin package, and the MPN LM4050BEM3-2.5 is lis; The 2.5V electrical characteristics table (section 5.6) falls on pages not included in the provided "
        ],
        "pages_sent": 20,
        "cost_usd": 0.1264,
        "at": "2026-10-08T15:43:34"
      },
      "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
      }
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4050bem3-2-5-etched.step",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "3f1e5c0442e8cdf2c1a749362f2dc62efd588d4ba96c0ca62c97dadf0276d2f0",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
    "lm4050bem3-2.5"
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  "discovery_pitch": "LM4050BEM3-2.5 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
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