High Efficiency 4-Switch Buck-Boost Controller Provides Accurate Output Current Limit - Design Note 499

摘要

The LTC3789 is a constant frequency current mode buck-boost switching regulator controller that accepts a wide 4V to 38V input voltage range. The single inductor topology yields high power density and high efficiency in a compact footprint. Its optional current-limit func- ' tion is useful for applications such as battery charging, where accurate current control is necessary.