ME432AXG

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  "title": "ME432AXG",
  "brief": "MICRONE Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "ME432AXG",
    "manufacturer": "MICRONE",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d31a7fc9fd15b473280c9de22940f074.pdf",
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    "distributor_links": {
      "lcsc": "C487903"
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    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference input. Internally compared to the 1.25 V bandgap reference; drive from the tap of the external R1/R2 divider between K and A to program V_KA = V_REF·(1 + R1/R2) + I_REF·R1. Input bias current I_REF ≈ 0.15 µA typ (0.4 µA max) at I_KA = 10 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "power_in",
        "description": "Anode. Return terminal of the shunt regulator; connected to ground/low side in typical bias applications. Sinks the cathode current back to the supply return."
      },
      {
        "number": "3",
        "name": "K",
        "type": "power_in",
        "description": "Cathode. High-side terminal of the shunt regulator; typically tied through a pull-up resistor from the rail (V_KA up to 18 V, absolute max 20 V). Regulates V_KA to the programmed voltage as it sinks 70 µA-100 mA. Dynamic impedance |Z_KA| ≈ 0.05 Ω typ at 1 kHz."
      }
    ],
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
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        "refuses_to_fabricate": true
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    "pin1": {
      "pad": "1",
      "at": [
        -0.9375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
      "mark": "drawn"
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        "zmin_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "MICRONE",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "Cathode voltage (absolute max)",
          "symbol": "VKA",
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          "unit": "V",
          "min": null,
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          "max": 20,
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        {
          "name": "Cathode current range, continuous (absolute max)",
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          "typ": null,
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        {
          "name": "Reference input current (absolute max)",
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          "max": 10,
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        {
          "name": "Maximum power dissipation, SOT23 (absolute max)",
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          "unit": "mW",
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        {
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        {
          "name": "Storage temperature range (absolute max)",
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          "unit": "℃",
          "min": -55,
          "typ": null,
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        {
          "name": "Thermal resistance junction to ambient, SOT23",
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          "typ": 350,
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        {
          "name": "Cathode voltage (recommended operating)",
          "symbol": "VKA",
          "kind": "recommended_operating",
          "unit": "V",
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          "max": 18,
          "conditions": "",
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        },
        {
          "name": "Cathode current (recommended operating)",
          "symbol": "IKA",
          "kind": "recommended_operating",
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          "min": 0.1,
          "typ": null,
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        },
        {
          "name": "Operating ambient temperature range",
          "symbol": "",
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          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Reference voltage, 0.5% grade (ME432A)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "V",
          "min": 1.244,
          "typ": 1.25,
          "max": 1.256,
          "conditions": "VKA=VREF, IKA=10mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage deviation over temperature, 0 to 70 ℃",
          "symbol": "ΔVREF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
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          "max": 12,
          "conditions": "VKA=VREF, IKA=10mA, 0 ~ 70℃",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Reference voltage deviation over temperature, -40 to 85 ℃",
          "symbol": "ΔVREF",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 12,
          "conditions": "VKA=VREF, IKA=10mA, -40 ~ 85℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic impedance",
          "symbol": "KA | Z |",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.05,
          "max": 0.15,
          "conditions": "VKA=VREF, IKA=1 ~ 100mA, f≤1.0KHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode working current",
          "symbol": "IKA(MIN)",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 70,
          "max": 80,
          "conditions": "VKA=VREF",
          "source_page": 4,
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        },
        {
          "name": "Ratio of reference input voltage change to cathode-anode voltage change",
          "symbol": "ΔVREF/ΔVKA",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -1,
          "max": -2,
          "conditions": "IKA=10mA, ΔVKA=16V to VREF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference input current",
          "symbol": "IREF",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.15,
          "max": 0.4,
          "conditions": "IKA=10mA, R1=10KΩ, R2=∝",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference input current deviation over temperature",
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          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 0.4,
          "conditions": "IKA=10mA, R1=10KΩ, R2=∝, TA=-40 ~150℃",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Off-state cathode current",
          "symbol": "IKA(OFF)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.01,
          "max": 0.05,
          "conditions": "VKA=18V, VREF=0",
          "source_page": 4,
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        {
          "name": "Reference voltage temperature coefficient (over full temperature range)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "PPM/℃",
          "min": null,
          "typ": 30,
          "max": null,
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        }
      ]
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  "variants": [
    {
      "mpn": "ME432AXG",
      "kind": "packaging"
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    {
      "mpn": "ME432BXG",
      "kind": "unknown"
    },
    {
      "mpn": "ME432ATG",
      "kind": "unknown"
    },
    {
      "mpn": "ME432BTG",
      "kind": "unknown"
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    {
      "mpn": "ME432ATBG",
      "kind": "unknown"
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      "mpn": "ME432BTBG",
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    {
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  "updated_at": "2026-09-25T01:41:00.826Z"
}