Diodes Incorporated

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Back to Linear and Low Dropout (LDO) Regulators


1.25V 600MA CMOS LDO

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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. 40μA
  • Output Voltage: 1.25V
  • Guaranteed 600mA (min) Output
  • Input Range up to 5.5V
  • Current Limiting
  • Stability with Low ESR Capacitors
  • Thermal shutdown Protection
  • Low Temperature Coefficient
  • SO-8EP: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish / RoHS Compliant
  • Application(s)

  • CD and MP3 Players
  • Cellular and PCS Phones
  • Digital Still Camera
  • Hand-Held Computers
  • Product Specifications

    Product Parameters

    Iq (max) (µA) 60
    Iq (typ) (?A) 40
    AEC Qualified No
    Compliance (Only Automotive supports PPAP) Standard
    Type LDO
    Output options Fixed
    Iout (A) 0.6
    Vin (Max) (V) 5.5
    Vin (Min) (V) 2.5
    Vout (min) 1.25
    Vout (max) 3.6
    Fixed Vout (V) 1.25
    Accuracy 25C 2
    VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 2
    PSRR (dB) 1kHz 55
    Operating Temperature (Ambient) (°C) -40 to 85
    Enable Active Yes (High)
    Channels 1
    Output Discharge No
    Power Good No
    Reverse Protection No
    VCTL Function No

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