TLV431BFTA

{
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  "type": "component",
  "slug": "tlv431bfta",
  "title": "TLV431BFTA",
  "brief": "Diodes Incorporated Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "TLV431BFTA",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.diodes.com/assets/Datasheets/TLV431BFTA.pdf",
    "parts": {
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      "footprint": "tlv431bfta.kicad_mod",
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      "model_3d_plain": "tlv431bfta.glb",
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      "lbr": "tlv431bfta.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference (feedback) input. High-impedance sense pin of the internal error amplifier; compared against the internal 1.24V bandgap VREF. The external R1/R2 divider from CATHODE to ANODE ties into this pin to program VKA = VREF x (1 + R1/R2). Typical input bias current 0.15 uA (0.5 uA max)."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "power_in",
        "description": "Anode (return / ground) terminal. Common negative rail of the internal shunt element; all internal voltages are referenced to this pin. In a standard shunt-regulator topology this connects to system GND."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "power_out",
        "description": "Cathode (regulated) terminal. Drain of the internal shunt output transistor; sinks current from VIN through the external series resistor R3 to maintain VKA at the programmed setpoint. Absolute max VKA = 20V, continuous IKA = -20 to +20 mA, minimum cathode current for regulation approximately 55 uA typ (80 uA max)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/TLV431BFTA.pdf",
        "pages": 17,
        "sha256": "bfc6983112ce20da",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "variants": [
    {
      "mpn": "TLV431BFTAAFTA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTATFTA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTAAE5TA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTABE5TA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTAAH6TA",
      "kind": "packaging"
    },
    {
      "mpn": "TLV431BFTABH6TA",
      "kind": "packaging"
    }
  ],
  "sections": [
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  "discovery_pitch": "TLV431BFTA (Diodes Incorporated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "tlv431bfta.lbr",
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    "docs/tlv431bfta-datasheet.pdf",
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  "visibility": {
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  "updated_at": "2026-09-25T10:28:29.856Z"
}