Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs

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.

Features
• Precision Multiphase Core Voltage Regulation
    - 0.5% System Accuracy Over-Temperature
    - Enhanced Load Line Accuracy
• Microprocessor Voltage Identification Input
    - 7-Bit VID Input, 0.300V to 1.500V in 12.5mV Steps
    - Supports VID Changes On-The-Fly
• Supports Multiple Current Sensing Methods
    - Lossless Inductor DCR Current Sensing
    - Precision Resistor Current Sensing
• Supports PSI# and DPRSLPVR modes
• Superior Noise Immunity and Transient Response
• Current Monitor and Thermal Monitor
• Differential Remote Voltage Sensing
• High Efficiency Across Entire Load Range
• Programmable 1-, 2- or 3-Phase Operation
• Two Integrated Gate Drivers
• Excellent Dynamic Current Balance Between Phases
• FB2 Function in 2-Phase Configuration to Optimize 1-Phase Performance
• Adaptive Body Diode Conduction Time Reduction
• User-selectable Overshoot Reduction Function
• Small Footprint 40 Ld 5x5 or 48 Ld 6x6 TQFN Package
• Pb-Free (RoHS Compliant)

Applications
• Notebook Computers