ISL78220EVAL1Z, Evaluation Board based on ISL78220 6-Phase Interleaved Synchronous Boost Converter

ISL78220EVAL1Z, Evaluation Board features the ISL78220 6-phase interleaved boost controller and six ISL6609A MOSFET drivers. The ISL78220 and ISL6609A are configured as a 6-phase synchronous boost converter for 6 to 11V input into 12V output at 30A. The interleaved timing reduces input and output ripple current, thereby reducing the required number of input and output capacitors. The ISL78220 enhances light load efficiency by dropping phases with decreasing load, by emulating a diode while stopping reverse current in the synchronous output switch and by skipping switch pulses at very light loads. The ISL6609A facilitates diode emulation by translating the midrange of the tri-level PWM out from the ISL78220 to turn both output switches off