• Increased Power Density with Fewer External Components
  • Monolithic Integration for Reduced Parasitics
  • Scalable Architecture Compatible with Coupled Inductors
  • 94% Peak Efficiency
  • Top-Side Cooling for Improved Heat Transfer to Ambient
• Accurate Real-Time Telemetry of Critical Parameters
  • PMBus-Compliant Interface through the Controller IC for Telemetry and Power Management
  • Junction Temperature Monitoring and Reporting
  • Per-Phase Current Reporting
• Advanced Self-Protection Features for the System and IC
  • Overcurrent Protection
  • Overtemperature Protection
  • Boost Voltage UVLO
  • VX Short Protection
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The MAX20766 is a feature-rich smart slave IC designed to work with Maxim’s seventh-generation controller to implement a high-density multiphase voltage regulator. Up to six smart slave ICs, plus a controller IC, provide a compact synchronous buck converter that includes accurate individual phase-current and temperature reporting through SMBus/PMBus™. This smart slave device includes protection circuits for overtemperature, VX short, and all power-supply UVLO faults. If a fault is detected, the slave IC immediately shuts down and sends a fault signal to the controller IC.

Monolithic integration and advanced packaging technologies allow practical per-phase, high-switching frequencies with significantly lower losses than alternative implementations. Smart slave ICs are designed to support phase shedding and DCM modes for efficiency optimization over a wide range of load currents. High per-phase current- capability designs with low C_OUT enable a design with fewer phases and a smaller footprint.

The MAX20766 is available in a 16-pin FCQFN package with exposed top-side thermal pads. Top-side cooling improves heat transfer to ambient and reduces PCB and component temperatures.

Applications

• Communication and Networking Equipment
• FPGAs
• High-Current Voltage Regulators
• Memory
• Microprocessor Chipsets
• Networking ASICs
• Servers and Storage Equipment