Renesas Electronics Corporation Digital Dual Output 4-Phase AMD PWM Controller ISL69144IRAZ

The ISL69144 is a digital dual output, multiphase PWM controller that is compliant with AMD SVI2 specifications. The digital multiphase controller can be configured to support any phase assignments across the two outputs (X and Y). With a flexible X+Y = 4-phase assignment along with PMBus V1.3 and SVI2 interfaces, the ISL69144 is ideal for controlling the microprocessor core, memory, and system rails of AMD SVI2 based platforms. When configured to use the SVI2 interface, Rail 1 can support a maximum of three phases and Rail 2 must have one phase assigned. The ISL69144 uses a proprietary digital linear predictive current modulation scheme to achieve the industry’s best combination of transient response and ease of tuning while addressing the challenges of powering the latest generation of AMD microprocessors. Configuration is accomplished through the intuitive PowerNavigator™ GUI. Diode emulation and automatic phase add/drop features allow the user to extract maximum efficiency from the converter regardless of load conditions. The ISL69144 supports a comprehensive fault management system to enable the design of highly reliable systems. From an overcurrent protection scheme including peak and average detection, to the configurable power-good and catastrophic fault protection flags, any need is accommodated. With minimal external components, the ability to store eight configurations, robust fault management, and highly accurate regulation capability, implementing a high-performance, multiphase regulator has never been easier.