DATASHEET
ISL62881, ISL62881B
Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs
FN6924 Rev 3.00 June 16, 2...
DATASHEET
ISL62881, ISL62881B
Single-Phase PWM
Regulator for IMVP-6.5™ Mobile CPUs and GPUs
FN6924 Rev 3.00 June 16, 2011
The ISL62881 is a single-phase PWM buck
regulator for miroprocessor or graphics processor core power supply. It uses an integrated gate driver to provide a complete solution. The PWM modulator of ISL62881 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.
The ISL62881 can be configured as CPU or graphics Vcore controller and is fully compliant with IMVP-6.5™ specifications. It responds to DPRSLPVR signals by entering/exiting diode emulation mode. It reports the
regulator output current through the IMON pin. It senses the current by using either discrete resistor or inductor DCR w...