LT3741 20A DC DC controller circuit diagram

The LT3741 is a fixed frequency synchronous step-down DC DC controller designed to accurately regulate the output current at up to 20A. The LT3741 is manufactured by Linear technology and will maintain inductor current regulation over a wide output voltage range of 0V to (VIN – 2V). The LT3741 DC DC controller IC operate over a wide input range , from 6 volts up to 36 volts . The regulated current is set by an analog voltage on the CTRL pins and an external sense resistor.

The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin or through the use of the SYNC pin and an external clock signal.
The LT3741 has a very low shutdown current (<1uA) and high efficiency up to 96% , 1.5% voltage regulation accuracy and  ±6% current regulation accuracy . The circuit is very easy to design and can be used in applications like : super-cap charging ,constant current or constant voltage source .
Main features of this DC controller are : 1.5% voltage regulation accuracy, ±6% current regulation accuracy , 6V to 36V input voltage range , wide output voltage range up to (VIN – 2V) , up to 94% efficiency , additional pin for thermal control of load current.
As you can see in this application circuit this regulator support high output currents , this circuit will provide 10 volts output voltage and a maximum current of 20 amperes .