Click to expand full text
DATASHEET
ISL81401, ISL81401A
40V 4-Switch Synchronous Buck-Boost Controller
FN9310 Rev.1.01 Jan 27, 2022
The ISL81401 and ISL81401A are 4-switch synchronous buck-boost controller with peak and average current sensing and monitoring at both ends. The ISL81401 is a bidirectional device that can conduct current in both directions while the ISL81401A is an unidirectional device.
The ISL81401 and ISL81401A use the proprietary buck-boost control algorithm with valley current modulation for Boost mode and peak current modulation for Buck mode control.
The ISL81401 and ISL81401A have four independent control loops for input and output voltages and currents.