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AP1122 (Obsolete)


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AP1122 is a low dropout positive fixed-mode regulator with 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 1.2V logic supply. AP1122 is also well suited for other applications such as VGA cards. AP1122 is guaranteed to have lower than 1.3V dropout at full load current making it ideal to provide well-regulated outputs of 1.2 output voltage with 2.5V input voltage supply.


  • 1.3V maximum dropout at full load current
  • Fixed 1.2V± 2% output voltage
  • Fast transient response
  • Output current limiting
  • Built-in thermal shutdown
  • Good noise rejection
  • Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L
  • SOT223-3L and TO252-3L: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/RoHS Compliant
  • Application(s)

  • PC peripheral
  • Communication
  • Product Specifications

    Product Parameters

    Channels 1
    Enable Active N/A
    Features High current
    IOUT 1
    IQ (mA) N/A
    Operating Temperature (Ambient) (°C) 0 to 125 *(Junction)
    PSRR 60
    VDROPOUT (Max) 1.4
    VIN (Max) 12
    VIN (Min) -0.3
    VOUT 1.2

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