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Ray Set visibility: public 482c439 24d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cm18450b",
  "title": "CM18450B",
  "brief": "iCM(创芯微) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. 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": "CM18450B",
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    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603386753382297600",
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      "source": "Component Ocean /api/assign-pns",
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      {
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        "name": "VOUT",
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      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, rated up to 40 V with VIN-to-ground at -0.3 V to 40 V."
      }
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        "at": "2026-10-17T17:27:43"
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        "sha256": "6178862cae1ab377",
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      "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": [
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        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-17",
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  "metadata": {
    "specs": {
      "Manufacturer": "iCM(创芯微)",
      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6178862cae1ab3775316c1a24468d6affb8eb3d8b44bd6ac9777ffe24d37da9f",
      "rows": [
        {
          "name": "输入电压 (Input voltage)",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "静态电流 (Quiescent current)",
          "symbol": "IGND",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 3,
          "conditions": "VIN=12V, no load",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出电压精度 (Output voltage tolerance)",
          "symbol": "VOUT",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=12V, IOUT=10mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输出电流 (Output current)",
          "symbol": "IOUT_MAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入输出压差 (Dropout voltage)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.12,
          "conditions": "IOUT=10mA, ΔVOUT=-VOUTNOM*2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入输出压差 (Dropout voltage)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOUT=50mA, ΔVOUT=-VOUTNOM*2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "输入输出压差 (Dropout voltage)",
          "symbol": "VDROP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IOUT=100mA, ΔVOUT=-VOUTNOM*2%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "负载调整率 (Load regulation)",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 30,
          "max": 60,
          "conditions": "1mA≤IOUT≤100mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "线性调整率 (Line regulation)",
          "symbol": "ΔVOUT*100/ΔVIN*VOUT",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "IOUT=1mA, VIN=(VOUTNOM+1V) to 40V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "电源抑制比 (Power supply rejection ratio)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "IOUT=10mA, f=1KHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "温度系数 (Temperature coefficient)",
          "symbol": "ΔVOUT/ΔTA*VOUT",
          "kind": "temperature_coefficient",
          "unit": "ppm/℃",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "IOUT=1mA, -40℃<TA<85℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "短路电流 (Short-circuit current)",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 110,
          "conditions": "VIN=(VOUTNOM+1V) to 40V, RLOAD=VOUTNOM/1A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "温度保护 (Thermal shutdown temperature)",
          "symbol": "TSHDN",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIN到地耐压 (VIN to GND voltage)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "VIN to GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VOUT到地耐压 (VOUT to GND voltage)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "VOUT to GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VOUT到VIN耐压 (VOUT to VIN voltage)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": 0.3,
          "conditions": "VOUT to VIN",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "工作环境温度 (Operating ambient temperature)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "存储温度 (Storage temperature)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "工作结温 (Operating junction temperature)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "热阻 SOT23-3 (Thermal resistance, SOT23-3)",
          "symbol": "",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 380,
          "conditions": "SOT23-3 package",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "输入电容 Cin (Input capacitor)",
          "symbol": "Cin",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 1,
          "typ": 10,
          "max": 22,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "输出电容 Cout (Output capacitor)",
          "symbol": "Cout",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": 4.7,
          "typ": 10,
          "max": 22,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
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      ]
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  "discovery_pitch": "CM18450B (iCM(创芯微)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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