4-Switch Synchronous Buck-Boost Controllers

Renesas Electronics 4-Switch Synchronous Buck-Boost Controllers feature peak and average current sensing and monitoring at both ends. The ISL81401 is a bidirectional device that conducts current in both directions, while the ISL81401A is a unidirectional device. The ISL81401, ISL81401A, and ISL81601 use the proprietary buck-boost control algorithm with valley current modulation for Boost mode and peak current modulation for Buck mode control. The ISL81601 device's wide input and output voltage ranges make it suitable for industrial, telecommunication, and after-market automotive applications.