AZ431BN-ATRE1

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  "title": "AZ431BN-ATRE1",
  "brief": "Diodes Incorporated Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "AZ431BN-ATRE1",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
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        "name": "REF",
        "type": "input",
        "description": "Reference (feedback) input to the internal error amplifier. Compared against the internal 2.5V VREF; drive from the external resistor divider between CATHODE and ANODE to program VKA = VREF(1 + R1/R2). Reference input current typ 0.7 μA (max 4 μA); absolute-max IREF is 10 mA."
      },
      {
        "number": "2",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (K) of the shunt regulator; sinks the regulation current IKA from the supply through a series resistor. Operating VKA from VREF up to 36V, IKA 1 mA to 100 mA (absolute max -100 to +150 mA, VKA 40V). Dynamic impedance typ 0.15 Ω."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode (A) of the shunt regulator; the low-side return, tied to circuit ground (or the bottom of the external feedback divider). All cathode and reference currents return through this pin."
      }
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        "described": 3,
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    "pin1": {
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      "at": [
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        -0.95
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
      "mark": "drawn"
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-07",
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  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
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          "name": "Reference Voltage (0.8% grade)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "V",
          "min": 2.48,
          "typ": 2.5,
          "max": 2.52,
          "conditions": "VKA = VREF, IKA = 10mA",
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        },
        {
          "name": "Deviation of Reference Voltage Over Full Temperature Range (0 to +70°C)",
          "symbol": "VREF",
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          "name": "Deviation of Reference Voltage Over Full Temperature Range (-40 to +85°C)",
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        {
          "name": "Ratio of Change in Reference Voltage to Change in Cathode Voltage (VKA 10V to VREF)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -1,
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        {
          "name": "Ratio of Change in Reference Voltage to Change in Cathode Voltage (VKA 36V to 10V)",
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        },
        {
          "name": "Reference Current",
          "symbol": "IREF",
          "kind": "electrical",
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          "name": "Deviation of Reference Current Over Full Temperature Range",
          "symbol": "IREF",
          "kind": "electrical",
          "unit": "µA",
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          "max": 1.2,
          "conditions": "IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125°C",
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        {
          "name": "Minimum Cathode Current for Regulation",
          "symbol": "IKA(Min)",
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          "max": 1,
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          "name": "Off-state Cathode Current",
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        {
          "name": "Dynamic Impedance",
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          "unit": "Ω",
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          "max": 0.5,
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          "name": "Cathode Voltage (recommended operating)",
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          "name": "Cathode Current (recommended operating)",
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        {
          "name": "Operating Ambient Temperature Range",
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        {
          "name": "Reference Input Current Range",
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          "conditions": "",
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        {
          "name": "Power Dissipation (N package, SOT23)",
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          "unit": "mW",
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  "updated_at": "2026-09-24T17:24:41.916Z"
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