The ADUM4472 series quad-channel Digital Isolator with a regulated DC-to-DC isolated power supply controller and an internal MOSFET driver. The DC-to-DC controller has an internal isolated PWM feedback from the secondary side, based on the iCoupler? chip scale transformer technology and complete loop compensation. This eliminates the need to use an optocoupler for feedback and compensates the loop for stability. It provides a more stable output voltage and higher efficiency compared to unregulated isolated DC-to-DC power supplies. The regulated feedback provides a relatively flat efficiency curve over the full output power range. It is enable a DC-to-DC converter with a 3.3 to 24V isolated output voltage range from either a 5 or a 3.3V input voltage, with an output power of up to 2.5W.