The ISL6262A is a two-phase buck converter regulator implementing Intel IMVP-6+ protocol with embedded gate drivers. The two-phase buck converter uses two interleaved channels to effectively double the output voltage ripple frequency, and thereby reduce output voltage ripple amplitude with fewer components; lower component cost; reduced power dissipation; and smaller real estate area. The heart of the ISL6262A is the patented R3 TechnologyTM, Intersil's Robust Ripple Regulator modulator. Compared with the traditional multiphase buck regulator, the R3 TechnologyTM has the fastest transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient. Intel Mobile Voltage Positioning (IMVP) is a smart voltage regulation technology, which effectively reduces power dissipation in Intel Pentium processors. To boost battery life, the ISL6262A supports DPRSLPVR (deeper sleep), DPRSTP# and PSI# functions, and maximizes the efficiency via automatically enabling different phase operation modes. At heavy load operation of the active mode, the regulator commands the two phase continuous conduction mode (CCM) operation. While the PSI# is asserted with medium load in active mode, the ISL6262A smoothly disables one phase and operates in one-phase CCM. When the CPU enters deeper sleep mode, the ISL6262A enables diode emulation to maximize the efficiency at light load. For better system power management of the portable computer, the ISL6262A also provides a CPU power monitor output. The analog output at the power monitor pin can be fed into an A/D converter to report instantaneous or average CPU power.