Processors that operate above a GHz require fast, intelligent power systems. The Intersil ISL6590 controller offers intelligent digital, multi-phase control that provides high bandwidth, optimal control frequency response, noise immunity and active transient response control algorithms. The design is fully scalable for controlling up to six phases, each featuring the Intersil ISL6580 intelligent power stage.

Features
• Open Architecture features software programmable control loop compensation enabling optimal system performance
   - User accessible asynchronous serial interface
• Intel VR10
   - 6-bit Dynamic VID™
   - Output voltage regulation range of 0.8375V to 1.600Vdc
• 250kHz to 1MHz switching frequency
• 100% digital control and signaling
• Active Transient Response (ATR) control algorithms for minimized voltage droop and overshoot
• Controls up to six ISL6580 intelligent power stages (20A per phase, 120A total system current)
• Programmable Adaptive voltage positioning (AVP) load line
• Configurable control loop parameters (with optional external EEPROM)
• Programmable MOSFET dead time control
• High speed voltage and current control loops
• PWRGD and OUTEN
• Serial interface to ISL6580 power stages for system monitoring and configuration
• 64 Ld 9x9 QFN package
• QFN Package Option
   - QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline
   - QFN Near Chip Scale Package Footprint; Improves PCB Efficiency, Thinner in Profile.