CJ6109A33GW

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  "title": "CJ6109A33GW",
  "brief": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "manufacturer": "Changjing",
    "package": "SOT-223",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2309150921_Jiangsu-Changjing-Electronics-Technology-Co---Ltd--CJ6109A33GW_C17703064.pdf",
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        "number": "1",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground / negative supply return. All internal references and the output feedback divider are referenced to this pin."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated 3.3 V output pin. Delivers up to 1.0 A (typ, 1.3 A max). Requires a ≥4.7 µF ceramic output capacitor to ground for stability. The SOT-223 tab is typically internally connected to this pin."
      },
      {
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        "name": "VIN",
        "type": "power_in",
        "description": "Unregulated positive supply input. Operating range 1.6 V to 6.0 V (absolute max VSS+7 V). Requires a ≥4.7 µF ceramic input capacitor to ground close to the pin. For 3.3 V output, VIN should be ≥ VOUT + dropout (≈320 mV @ 1 A)."
      }
    ],
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 3,
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    "pin1": {
      "pad": "1",
      "at": [
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",
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  "metadata": {
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      "source": "datasheet",
      "rows": [
        {
          "kind": "recommended_operating",
          "name": "Input capacitance",
          "symbol": "CIN",
          "min": 4.7,
          "typ": null,
          "max": null,
          "unit": "uF",
          "conditions": "\"Input capacitor (CIN): 4.7uF or more\"; output capacitor ceramic compatible; CJ6109A characterised at CIN=COUT=4.7uF (p.4)",
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          "min": 4.7,
          "typ": null,
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          "unit": "uF",
          "conditions": "\"Output capacitor (COUT): 4.7uF or more\"; \"Output Capacitor: Ceramic Compatible\" (p.1); \"Check that no oscillation occurs with the application using the above capacitor\"",
          "source_page": 2,
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        },
        {
          "kind": "recommended_operating",
          "name": "Output capacitor ESR",
          "symbol": "ESR",
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          "unit": "ohm",
          "conditions": "datasheet states no output capacitor ESR condition",
          "source_page": 2,
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        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "Relative to VSS (VSS-0.3 to VSS+7)",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "recommended_operating",
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          "min": 1.6,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "Output current",
          "symbol": "IOUT",
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          "unit": "mA",
          "min": null,
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  "author": {
    "name": "Ray"
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  "variants": [
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      "mpn": "CJ6109A33GW",
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    {
      "mpn": "CJ6109A33GWP",
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    {
      "mpn": "CJ6109A33GWPL",
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    {
      "mpn": "CJ6109A33GWM",
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      "mpn": "CJ6109A33GWFB",
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  "updated_at": "2026-09-24T19:06:57.929Z",
  "description": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}