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The AP7217 low-dropout linear regulator operates from a 3.3V to 5.5V supply and delivers a guaranteed 500mA (min) continuous load current. The high-accuracy output voltage is preset to an internally trimmed voltage. An active-low open-drain reset output remains asserted for at least 20ms (TYP) after output voltage reaches VDF. The space-saving SO-8 package is suitable for “pocket” and hand-held applications.


  • Very Low Dropout Voltage
  • Low Current Consumption: Typ. 50μA
  • Output Voltage: 3.3V
  • Guaranteed 500mA (min) Output
  • Input Range up to 5.5V
  • Current Limiting
  • Stable with either electrolytic capacitor or low-ESR MLCC (multi-layer ceramic capacitor) Low Temperature Coefficient
  • SO-8: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish / RoHS Compliant
  • Application(s)

  • HD/BlueRay DVD & MP3/4 Players
  • Mobile Handsets and Smartphones
  • Digital Still Camera
  • Hand-Held Computers
  • Product Specifications

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    Output options Fixed
    Iout (A) 0.5
    Vin (Max) (V) 5.5
    Vin (Min) (V) 3.3
    Vout (min) 3.3
    Vout (max) 3.3
    Fixed Vout (V) 3.3
    Iq (typ) (µA) 50
    Accuracy 25C 2%
    VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.82
    PSRR (dB) 1kHz 55
    Operating Temperature (Ambient) (°C) -40 to 85 (°C)
    Enable Active H
    Channels 1
    Output Discharge no
    Iq (max)(µA) 79
    VCTL function no

    Related Content


    Technical Documents

    Recommended Soldering Techniques


    RoHS CofC

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site