EC3293A-3A, 18V, 500KHz, Syn. DC/DC Converter

 General description

The  EC3293A  is  a  high-frequency,  synchronous,rectified, step-down, switch-mode  converter  with internal   power   MOSFETs.   It   offers   a   very   compact solution to achieve a 3A continuous output current over a wide input supply range, with excellent load and line regulation.The EC3293A  has  synchronous-mode operation for higher  efficiency over the output current-load range.

Current-mode  operation provide fast transient

response and eases loop stabilization.

Protection features include over-current protection and

thermal shutdown. The  EC3293A  requires  a  minimal  number  of  readily

available, standard external components and is available

in a space-saving TSOT23-6L package.



  • 4.7V to 18V input voltage
  • Output adjustable from 0.8V to 15V
  • Output current up to 3A
  • Integrated 110mΩ/58mΩ power MOSFET switches
  • Shutdown current 3μA typical
  • Efficiency up to 95%
  • Fixed frequency 500KHz
  • Internal soft start
  • Over current protection and Hiccup
  • Over temperature protection
  • RoHS Compliant and 100% Lead (Pb) Free



  • Distributed power systems
  • Networking systems
  • FPGA, DSP, ASIC power supplies
  • Notebook computers
  • Green electronics or appliance


Pin Configurations

Ordering info

Typical Applications circuit