The LTC3789EGN#PBF is a synchronous, high-efficiency, four-switch buck-boost DC/DC controller manufactured by Analog Devices. It is designed for ultra-wide input voltage range of 28V to 88V, enabling industrial and telecom applications. This switching regulator is specially optimized for the highest efficiency over the widest possible operating range, achieving above 98% efficiency. It can generate output voltages from 0.7V to 85V and deliver up to 30A of output current.In addition, the DC/DC controller features an integrated differential remote sense, allowing tight load regulation and high system accuracy. Other features include adjustable soft-start, programmable switching frequency, external synchronization, and programmable current limit. The device is offered in a 28-lead thermally enhanced TSSOP package, making it ideal for space-constrained applications.