LM4040D30IDBZR

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  "type": "component",
  "slug": "lm4040d30idbzr",
  "title": "LM4040D30IDBZR",
  "brief": "Texas Instruments Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "LM4040D30IDBZR",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm4040d30idbzr.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Shunt current/voltage input (cathode of the reference). Regulates to 3.0 V above the anode when biased through a series resistor RS. Recommended cathode current 45 µA to 15 mA."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Common pin, normally connected to ground. Return path for the shunt current."
      },
      {
        "number": "3",
        "name": "SUB",
        "type": "passive",
        "description": "Substrate connection. Pin 3 is attached to substrate and must be connected to ANODE or left open."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm4040d30idbzr.pdf",
        "pages": 60,
        "sha256": "9969399d53c90478",
        "source_tier": "mfr"
      },
      "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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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
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    {
      "mpn": "LM4040D30IDBZT",
      "kind": "unknown"
    },
    {
      "mpn": "LM4040D30IDBZRIDCKR",
      "kind": "packaging"
    },
    {
      "mpn": "LM4040D30IDBZRIDCKT",
      "kind": "packaging"
    }
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  "discovery_pitch": "LM4040D30IDBZR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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  "updated_at": "2026-09-28T16:53:09.686Z"
}