The ISL6331CRZ is a highly integrated, programmable multi-phase synchronous buck regulator controller from Intersil. It is designed for use in high-performance computing and server applications, providing precise voltage regulation for microprocessors and other critical system components.

Applications:

• Desktop PCs
• Servers
• Workstations
• Graphics cards
• High-performance computing systems

Features:

• Multi-phase operation: Up to 4-phase operation
• Programmable output voltage: 0.5V to 1.5V
• Integrated MOSFET drivers
• Adjustable switching frequency: 200kHz to 1.5MHz
• Over-current protection
• Over-voltage protection
• Under-voltage protection
• Thermal shutdown protection
• Remote sensing
• Phase shedding for light load efficiency
• Voltage positioning

Benefits:

• High efficiency: Multi-phase operation and phase shedding optimize efficiency across a wide load range.
• Precise voltage regulation: Provides accurate and stable voltage regulation, ensuring reliable operation of critical system components.
• Integrated MOSFET drivers: Reduces component count and simplifies design.
• Robust protection: Built-in protection features prevent damage from over-current, over-voltage, under-voltage, and thermal overload conditions.
• Programmable: Allows for customization to meet specific application requirements.

Additional Details:

The ISL6331CRZ utilizes a current-mode control architecture to provide excellent transient response and load regulation. The programmable switching frequency allows designers to optimize performance for different applications. The integrated MOSFET drivers minimize external component count and simplify PCB layout. The ISL6331CRZ also incorporates remote sensing to compensate for voltage drops across PCB traces and connectors, ensuring accurate voltage regulation at the load. It is available in a QFN package.