Diodes Incorporated

AP3003 (Obsolete)

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The AP3003 series of regulators are fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with excellent line and load regulation. These regulators include internal frequency compensation and a fixed frequency oscillator so that they are easy to use. A system adopting AP3003 requires a minimum number of external components to work. A standard series of inductors, optimized for use with the AP3003 series, are available from several manufacturers. This feature greatly simplifies the design of switch-mode power supplies. These ICs are available in TO-220-5 and TO-263-5 packages.


  • LCD Monitor and LCD TV
  • On-Card DC-DC Converter
  • DVD Recorder
  • PDP

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