Mobile Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

The ISL6223 multi-phase PWM control IC together with its companion gate drivers, the HIP6601, HIP6602 or HIP6603 and Intersil MOSFETs provides a precision voltage regulation system for advanced mobile microprocessors. A single-stage regulator that directly converts a battery voltage to a microprocessor core voltage can be designed when high voltage drivers are employed. Multiphase power conversion is a marked departure from earlier single phase converter configurations previously employed to satisfy the ever increasing current demands of modern microprocessors.

Features
• Mobile VID Compatible Multi-Phase Power Conversion
• Precision Channel Current Sharing
    - Loss Less Current Sampling - Uses rDS(ON)
• Precision CORE Voltage Regulation
    - ±1% System Accuracy Over Temperature
• Microprocessor Voltage Identification Input
    - 5-Bit VID Input
    - 1.30V to 2.00V in 50mV Steps
    - 0.925V to 1.275V in 25mV Steps
    - Programmable “Droop” Voltage
• Fast Transient Recovery Time
• Over Current Protection
• High Ripple Frequency (Channel Frequency Times
    Number of Channels, Two). . . . . . . . . . . .100kHz to 3MHz