Analog Devices / Maxim Integrated MAX20790 Smart Power-Stage IC

Analog Devices MAX20790 Smart Power-Stage IC is designed to work with ADI controllers to implement a high-density multiphase voltage regulator. The MAX20790 features multiple smart power-stage ICs plus a controller that provides a compact synchronous buck converter. It includes accurate individual phase current and temperature reporting through PMBus™. These Analog Devices smart power-stage ICs include fault-protection circuits for overtemperature, VX short, and supply under-voltage lockout (UVLO). The MAX20790 immediately shuts down on fault detection, communicating the Fault_ID to the controller.

Features

  • Space-optimized solution
    • Monolithic, smart power stage
    • Phase-current steering for thermal balance
    • Small footprint: ~24mm2
  • 95.6% peak efficiency
    • 6-phase, 400kHz, 12V VIN, 1.8V VOUT
  • 300kHz to 1.3MHz switching frequency
  • Telemetry and fault reporting through controller IC PMBus
    • Accurate temperature monitoring and reporting
    • Accurate per-phase current reporting
    • Fault_ID indicates the type of fault
  • Advanced self-protection features
    • Supply and boost UVLO protection
    • Boost refresh
    • VX short and overtemperature shutdown
    • Fast overcurrent protection

Applications

  • High current multiphase-voltage regulators
    • Networking ASICs
    • AI and machine learning ASICs
    • Graphics processors
  • Servers, workstations, and enterprise storage
  • Communications and networking equipment
  • AI and machine learning

Analog Devices / Maxim Integrated MAX20790 Smart Power-Stage IC