The compact 3.3V 3A Power Supply Module is a compact DC-DC buck converter designed to step down input voltages ranging from 5V to 17V to a stable 3.3V output, delivering up to 3A of current. Using a highly efficient switching regulator, this module offers an energy-efficient solution for powering electronic circuits and devices that require 3.3V, such as microcontrollers, sensors, and communication modules. It features three pins for easy soldering onto PCBs or breadboards, making it ideal for use in embedded systems, prototyping, and low-power applications.