Renesas / Intersil ISL78201/6 40V 2.5A Buck Controllers are AEC Q100 qualified synchronous buck or boost buck controllers with a high-side MOSFET and low-side driver integrated. In buck mode, both devices support a wide input range of 3V to 40V. With the ISL78201 in boost-buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on during cold-cranking and start-stop applications. The ISL78206 can be operated in synchronous and non-synchronous buck topologies. For vehicle systems that must be kept powered during cold-cranking or start-stop operation, the ISL78206 can be replaced by its pin-to-pin alternative, the ISL78201 which offers boost-buck operation. Together, these devices offer two functional alternatives on the same PCB layout, providing convenience, flexibility, and facilitating extensive design re-use.
