The ISL78220 6-phase controller is targeted for applications where high efficiency (>95%) and high power are required. The multiphase boost converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple. Lower ripple results in fewer input/output capacitors and therefore lower component cost and smaller implementation area.
The ISL78220 has a dedicated pin to initiate the phase dropping scheme for higher efficiency at light load by dropping phases based on the load current, so the switching and core losses in the converter are reduced significantly. As the load increases, the dropped phase(s) are added back to accommodate heavy load transients and improve efficiency. Application Note 1726
ISL78220EVAL1Z: 6-Phase Interleaved Synchronous
Boost Converter
ISL78220EVAL1Z Evaluation Recommended Equipment
Board 0V to 20V main power supply with at least 70A source
The ISL78220EVAL1Z evaluation board features the ISL78220 current capability
6-phase interleaved boost controller and six ISL6609A 12V electronic load capable of sinking up to 30A
MOSFET drivers. The ISL78220 and ISL6609A are configured
as a 6-phase synchronous boost converter for 6-11V input into ……
