The LTC3871/LTC3871-1 is a high performance bidirectional buck or boost switching regulator controller that operates in either buck or boost mode on demand. It regulates in buck mode from VHIGH-to-VLOW and boost mode from VLOW-to-VHIGH depending on a control signal, making it ideal for 48V/12V automotive dual battery systems. An accurate current programming loop regulates the maximum current that can be delivered in either direction. The LTC3871/LTC3871-1 allows both batteries to supply energy to the load simultaneously by converting energy from one battery to the other. Its proprietary constant-frequency current mode architecture enhances the signal-to-noise ratio enabling low noise operation and provides excellent current matching between phases. Additional features include discontinuous or continuous mode of operation, OV/UV monitors, independent loop compensation for buck and boost operation, accurate output current monitoring and overcurrent protection. The LTC3871 and LTC3871-1 have different current limit foldback characteristics. Applications * Automotive 48V/12V Dual Battery Systems * Backup Power Systems * Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current * VHIGH Voltages Up to 100V * VLOW Voltages Up to 30V * Synchronous Rectification: Up to 97% Efficiency * ADI-Proprietary Advanced Current Mode Control * ±1% Voltage Regulation Accuracy Over Temperature * Accurate, Programmable Output Current Monitoring and Regulation for Both Buck and Boost Operation https://elecena.pl/product/6241051/bidirectional-polyphase-synchronous-buck-or-boost-controller 2016-09-03 https://elecena.pl/product/6241051/bidirectional-polyphase-synchronous-buck-or-boost-controller 2017-10-11 https://elecena.pl/product/6241051/bidirectional-polyphase-synchronous-buck-or-boost-controller 2025-01-17