GM7400ARZ-3-R7

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  "slug": "gm7400arz-3-r7",
  "title": "GM7400ARZ-3-R7",
  "brief": "GONGMOSEMI Voltage Reference, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "GM7400ARZ-3-R7",
    "manufacturer": "GONGMOSEMI",
    "package": "SO-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b18e1a8bd48159a25a0b176200adaa60.pdf",
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave floating in the application."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input; the datasheet gives a 3.3V to 40V supply range and requires VIN to be at least VOUT + 1V (3.5V minimum)."
      },
      {
        "number": "3",
        "name": "TEMP",
        "type": "output",
        "description": "Temperature monitor pin; unbuffered PTAT output with 657 mV typical at 25°C and a 2.2 mV/°C temperature sensitivity."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "TRIM",
        "type": "passive",
        "description": "Output voltage trim pin used to fine-tune VOUT up or down; the datasheet gives a trim range of ±3% typical and ±6% maximum with a 10 kΩ potentiometer."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "output",
        "description": "Reference voltage output, with 3V output and ±0.05% initial accuracy for the Grade B version and ±0.02% for Grade A, and ±10mA output drive capability."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave floating in the application."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; leave floating in the application."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 17,
        "cost_usd": 0.0009,
        "at": "2026-10-27T00:16:04"
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        "pages": 17,
        "sha256": "bc5978c04a4c7c0a",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "GONGMOSEMI",
      "Package": "SO-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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    "characteristics": {
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          "unit": "%",
          "min": -0.02,
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          "max": 0.02,
          "conditions": "Grade A",
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        {
          "name": "Temperature coefficient 8-pin SOIC Grade A",
          "symbol": "TCVO",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 1.5,
          "max": 3,
          "conditions": "8 引脚 SOIC, −40°C < TA < +125°C, 0°C < TA < +70°C",
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          "source": "datasheet"
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        {
          "name": "Minimum input-output voltage differential at VOUT=3.0V",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "VOUT = 3.0V, VOUT = 5.0V, VOUT = 10.0V",
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          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "∆VO/∆VIN",
          "kind": "electrical",
          "unit": "ppm/V",
          "min": null,
          "typ": 15,
          "max": 25,
          "conditions": "VIN = 4.0 V to 50 V, −40°C < TA < +125°C",
          "source_page": 6,
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        {
          "name": "Load regulation",
          "symbol": "∆VO/∆ILOAD",
          "kind": "electrical",
          "unit": "ppm/mA",
          "min": null,
          "typ": 15,
          "max": 45,
          "conditions": "ILOAD = 0 mA to 10 mA, −40°C < TA < +125°C, VIN = 10.0 V",
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        {
          "name": "Quiescent current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "空载, −55°C < TA < +125°C",
          "source_page": 6,
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        {
          "name": "Output voltage noise, peak-to-peak",
          "symbol": "eN p-p",
          "kind": "electrical",
          "unit": "ppm_p-p",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "0.1 Hz to 10.0 Hz",
          "source_page": 6,
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        {
          "name": "Short-circuit current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Long-term stability",
          "symbol": "ΔVOUT_LTD",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "1000 小时",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage hysteresis",
          "symbol": "∆VOUT_HYS",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "25°C < TA < +125°C",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "TEMP pin output voltage",
          "symbol": "VTEMP",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 657,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Temperature sensitivity of TEMP pin",
          "symbol": "TCVTEMP",
          "kind": "temperature_coefficient",
          "unit": "mV/°C",
          "min": null,
          "typ": 2.2,
          "max": null,
          "conditions": "",
          "source_page": 6,
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          "name": "Input voltage",
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        {
          "name": "Storage temperature range",
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          "unit": "°C",
          "min": -65,
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          "max": 150,
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        {
          "name": "Operating temperature range, SOIC and MSOP",
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          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
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        {
          "name": "Junction temperature",
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          "name": "Pin temperature, soldering",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "焊接 60 秒",
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          "source": "datasheet"
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        {
          "name": "Thermal resistance junction-to-ambient, 8-pin SOIC",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "",
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        {
          "name": "Thermal resistance junction-to-case, 8-pin SOIC",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 43,
          "max": null,
          "conditions": "",
          "source_page": 5,
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