ISL62883,pdf datasheet (Multip

The ISL62883 is a multiphase PWM buck regulator for
miroprocessor core power supply. The multiphase buck
converter uses interleaved phase to reduce the total output
voltage ripple with each phase carrying a portion of the total
load current, providing better system performance, superior
thermal management, lower component cost, reduced power
dissipation, and smaller implementation area. The ISL62883
uses two integrated gate drivers and an external gate driver to
provide a complete solution. The PWM modulator is based on
Intersil's Robust Ripple Regulator (R3) technology™.
Compared with traditional modulators, the R3™ modulator
commands variable switching frequency during load transients,
achieving faster transient response. With the same modulator,
the switching frequency is reduced at light load, increasing the regulator efficiency.