The LTC3858IUH#TRPBF is a synchronous monolithic buck switching regulator controller, manufactured by Analog Devices. It is a high-speed and high-efficiency controller with fast transient response and accurate output voltage regulation. This device features an integrated MOSFET driver, flexible synchronization and pulse-skipping modes, wide operating range, and current mode control. It also offers low dropout operation, allowing for maximum power delivery. Additionally, this device features a wide range of operating frequency settings, comprehensive protection features, undervoltage lockout, temperature sensing, and logic compatible shutdown.