LTC3780 Buck Boost DC 5V-32V to 1V-30V 10A Step Up Down Power Module

However, soldering a 1M resistor between pins 5 & 7 of the LM358 give around 0.5V of hysteresis. Great for camper vans and the like. Max rated output power 80W output current 8A. Short circuit protection.

eBay