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300MA Low Dropout (LDO) Linear Regulator

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The AP130 is a 300mA, fixed output voltage, low dropout linear regulator. The device includes pass element, error amplifier, band-gap, current-limit and thermal shutdown circuitry. The characteristics of low dropout voltage and less quiescent current make it good for some critical current application, for example, some battery powered devices. The typical quiescent current is approximately 50μA from zero to maximum load. Due to internal flexible design, results in extensively fixed output voltage versions and make it convenient to use for applications. Built-in current-limit and thermal-shutdown functions prevent any fault condition from IC damage.


  • Input Voltage Range: 2.7V to 5.5V
  • Dropout Voltage 400mV at 300mA Output Current
  • Guaranteed 300mA Output Current
  • Internal Ron = 1.5Ω PMOS Draws No Base Current
  • Low Quiescent Current 50μA
  • Output Voltage: 1.5V/1.8V/2.0V/2.5V/2.8V/3.0V/ 3.3V/3.5; Accuracy 2%
  • Fast Transient Response
  • Good Load Regulation
  • Current Limit and Thermal Shutdown Protection
  • Short Circuit Current Fold-Back
  • Lead Free Packages: SC59, SC59R, SOT89-3L, and SOT89R-3L
  • Available in “Green” Molding Compound (No Br, Sb) SC59, SC59R and SOT23
  • Lead Free Finish/RoHS Compliant
  • Application(s)

  • Battery Powered Device
  • CD-ROM, DVD, and LAN Card
  • PC Peripheral
  • Wireless Communication
  • Product Specifications

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    Output options Fixed
    Iout (A) 0.3
    Vin (Max) (V) 5.5
    Vin (Min) (V) 2.7
    Vout (min) 1.5
    Vout (max) 3.5
    Fixed Vout (V) 1.5, 1.8, 2.0, 2.5, 2.8, 3.0, 3.3, 3.5
    Iq (typ) (µA) 55
    Accuracy 25C 2%
    VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.5
    PSRR (dB) 1kHz 55
    Operating Temperature (Ambient) (°C) -40 to 85 (°C)
    Channels 1
    Output Discharge no
    Iq (max)(µA) 100
    VCTL function no

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