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Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter


The EUP3020 contains two independent 1.5MHz constant frequency, current mode, PWM step-down converters. Each converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The EUP3020 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. Each converter can supply 1A of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The EUP3020 can also run at 100% duty cycle for low dropout applications.

EUP3020 is available in an adjustable version and fixed output voltage of 1.2V, 1.8V ,3.3V.


  • • Up to 96% Efficiency
  • • 1.5MHz Constant Switching Frequency
  • • 1A Load Current on Each Channel
  • • 2.5V to 5.5V Input Voltage Range
  • • Output Voltage as Low as 0.6V
  • • 100% Duty Cycle in Dropout
  • • Current Mode Operation
  • • Short Circuit Protection
  • • Thermal Fault Protection
  • • <1μA Shutdown Current
  • • Soft Start Function
  • • Space Saving 12-Pin TDFN Package
  • • RoHS Compliant and 100% Lead (Pb)-Free


  • • Cellular and Smart Phones
  • • Microprocessors and DSP Core Supplies
  • • PDAs and Portable Media Players
  • • Wireless and DSL Modems
  • • Digital Still and Video Cameras
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