4A2D

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  "title": "4A2D",
  "brief": "Shenzhen Fuman Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "4A2D",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
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    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Voltage input. Operating range 2.0V to 6.0V. Bypass with a 1uF ceramic capacitor (CIN) to GND close to the pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the regulator. Common return for input and output capacitors."
      },
      {
        "number": "3",
        "name": "CE",
        "type": "input",
        "description": "Chip Enable. Drive high (VCEH >= 1.0V) to enable regulator; drive low (VCEL <= 0.7V) to shut down (shutdown current ~0.1uA typ). Do not leave floating."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (typical application shows this pin unconnected)."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Regulated voltage output. Factory-set to 3.3V (±2%) for the 4A2D variant. Requires a 1uF ceramic output capacitor (CL) to GND. Max output current 500mA; short-circuit current ~150mA typ."
      }
    ],
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 5,
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    "pin1": {
      "pad": "1",
      "at": [
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        -0.95
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      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-5@sha256:455a3f7c3e5eb5b8",
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  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "SOT-23-5",
      "Category": "PMIC",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "Output voltage (effective) VOUT(E) - lower factor",
          "symbol": "VOUT(E)",
          "kind": "tolerance",
          "unit": "V",
          "min": 0.98,
          "typ": null,
          "max": null,
          "conditions": "IOUT=30mA, VIN=VOUT+1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (effective) VOUT(E) - upper factor",
          "symbol": "VOUT(E)",
          "kind": "tolerance",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.02,
          "conditions": "IOUT=30mA, VIN=VOUT+1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CE pin high-level input voltage (start up)",
          "symbol": "VCEH",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": null,
          "conditions": "Statr up",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CE pin low-level input voltage (shut down)",
          "symbol": "VCEL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "Shut down",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "△VOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 9,
          "conditions": "VIN=VOUT+1V, 1mA≤IOUT≤100mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage VDIF1",
          "symbol": "VDIF1",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "IOUT=100mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage VDIF2",
          "symbol": "VDIF2",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "IOUT=200mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ICEL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCE=0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection PSRR at 1 kHz",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 70,
          "typ": null,
          "max": null,
          "conditions": "VIN=VOUT+1V, 1Vp-p AC, IOUT=10mA, 1KHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection PSRR at 10 kHz (100mA)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "VIN=VOUT+1V, 1Vp-p AC, IOUT=100mA, 10KHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection PSRR at 10 kHz (200mA)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "VIN=VOUT+1V, 1Vp-p AC, IOUT=200mA, 10KHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IOUTMAX",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "VIN=VOUT+1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "VIN=VOUT+1V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "",
          "kind": "electrical",
          "unit": "%/V",
          "min": null,
          "typ": 0.05,
          "max": null,
          "conditions": "IOUT=40mA, VOUT+1V≤VIN≤6.5V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output noise voltage",
          "symbol": "EN",
          "kind": "electrical",
          "unit": "uVrms",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "IOUT=40mA, 300Hz~50KHz",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit current",
          "symbol": "ISHORT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VIN=VOUT+1V, VCE=VIN, VOUT=0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage operating range",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
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  "updated_at": "2026-09-24T14:39:38.480Z",
  "description": "Shenzhen Fuman Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}