TL4050B41QDBZR

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  "type": "component",
  "slug": "tl4050b41qdbzr",
  "title": "TL4050B41QDBZR",
  "brief": "Texas Instruments Voltage Reference, SOT-23-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "power management (pmic)",
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  "component": {
    "mpn": "TL4050B41QDBZR",
    "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/tl4050a",
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      "lbr": "tl4050b41qdbzr.lbr"
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    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (K) terminal of the shunt voltage reference. Sinks the regulated cathode current (IZ) - recommended operating range 60μA to 15mA - while maintaining VZ = 4.096V above the anode. Absolute maximum continuous cathode current is -10mA to +20mA."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode (A) terminal of the shunt voltage reference; the low-side / ground return of the two-terminal reference. VZ (4.096V) is developed between CATHODE and ANODE."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. A parasitic Schottky diode exists between pin 2 (Anode) and pin 3, so pin 3 MUST be left floating or tied to pin 2 (Anode). In applications with high EMI or significant high-frequency switching noise, TI recommends tying this pin to Anode."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tl4050a",
        "pages": null,
        "sha256": "d043c5224a893bec",
        "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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        "role": "plain",
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        "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": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-07",
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        "zmin_mm": 0.0,
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        "checked": "2026-10-07",
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    }
  },
  "variants": [
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      "mpn": "TL4050B41QDBZRIDBZR",
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    },
    {
      "mpn": "TL4050B41QDBZRQDCKR",
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    },
    {
      "mpn": "TL4050B41QDBZRQDCKT",
      "kind": "packaging"
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  "discovery_pitch": "TL4050B41QDBZR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "updated_at": "2026-09-25T09:53:45.377Z"
}