Taking a look at the ready-to-use reference designs, this is a basic design using the ISL8117 in the HTSSOP package. Input can be any voltage from 4.5V to 60V and output is set at 3.3V for 6A of load current. Please note that if a designer does not have any specific requirements on different functional pins, such as soft-start or rise time (RT), those extra components can be saved by using the default internal values. Also note that the EXTBIAS pin is grounded since it is not used. If the engineer has an external power source of 5V or can create a 5V supply, efficiency can be boosted further as was shown in earlier slides and in the slides coming up.