Overview: DATASHEET ISL6260, ISL6260B
Multiphase Core Regulator for IMVP-6 Mobile CPUs FN9162 Rev 1.00 Jan 3, 2006 The ISL6260 and ISL6260B provide microprocessor core voltage regulation by driving up to 3 channels in parallel. The multiphase buck converter architecture uses interleaved channels to multiply the output voltage ripple frequency and reduce output channel currents. The reduction in ripple results in fewer ponents, lower ponent cost, reduced power dissipation, and smaller implementation area. The ISL6260, ISL6260B multiphase controller together with the ISL6208 gate drivers form the basis for a portable power supply solution to power Intel's next generation mobile microprocessors. The modulator at the heart of this power system is derived from Intersil's Robust Ripple Regulator technology, (R3) pared with the traditional multiphase buck regulator, the R3 technology multiphase converter has faster transient response. This is due to the R3 modulator manding variable switching frequency during load transients. Intel Mobile Voltage Positioning is a smart voltage regulation technology, which effectively reduces power dissipation in Intel Pentium processors. The ISL6260 and ISL6260B support the IMVP-6 mobile processor voltage regulation specifications. ISL6260 and ISL6260B are pin-to-pin patible. ISL6260B responds to PSI# signal by adding or dropping PWM2 and adjusting overcurrent protection accordingly. To improve audible noise, the DPRSLPVR signal can be used to reduce slew rates entering and exiting Deeper Sleep.
