DATASHEET
ISL62882, ISL62882B FN6890
Rev 4.00
June 21, 2011 Multiphase PWM Regulator for IMVP-6.5в„ў Mobile CPUs and GPUs
The ISL62882 is a multiphase PWM buck regulator for
miroprocessor or graphics processor core power supply. The
multiphase buck converter uses interleaved phases 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
ISL62882 uses two integrated gate drivers to provide a complete
solution. The PWM modulator is based on Intersil's Robust Ripple
Regulator (R3) technologyв„ў. Compared with traditional
modulators, the R3в„ў 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.
The ISL62882 can be configured as CPU or graphics Vcore
controller and is fully compliant with IMVP-6.5в„ў specifications. It
responds to PSI# and DPRSLPVR signals by adding or dropping
Phase 2, adjusting overcurrent protection threshold accordingly,
and entering/exiting diode emulation mode. It reports the …
