MAX20796AGFB+T

Overview

The MAX20796AGFB+T is a fully integrated, high-efficiency dual-phase synchronous buck switching regulator controller designed for demanding power delivery applications. It operates from a single supply voltage range of 4.5V to 16V and supports output currents up to 60A, with an optional third phase extending capacity to 90A. The device features a configurable output voltage range from 0.5V to 5.5V and a fixed switching frequency between 200kHz and 799kHz. It integrates a linear regulator for single-supply operation and includes comprehensive protection mechanisms such as overcurrent, thermal shutdown, and undervoltage lockout.

Feature Summary

• Integrated dual-phase control topology supporting coupling inductors or discrete components for optimized transient response
• Built-in linear regulator enabling single-supply operation without auxiliary power sources
• PMBus Rev 1.3 compatible interface for precise configuration of system parameters and fault monitoring
• Advanced protection features including fast peak overcurrent detection and average overcurrent protection

Applications

• Server and telecommunications infrastructure power supplies
• Microprocessor core voltage regulation (Vcore)
• Memory subsystem power delivery (VDDQ)
• Point-of-load regulation for I/O and auxiliary circuits

Procurement Notes

Verify the specific suffix 'AGFB+T' against official Analog Devices documentation to confirm tape-and-reel packaging and pre-configured operating parameters. Ensure compatibility with existing PCB footprints for the 35-lead FC2QFN package. Confirm that the selected switching frequency and PMBus address align with system design requirements before finalizing procurement orders.

Selection Notes

Select this component when designing compact, high-current power stages for server or telecom equipment requiring efficient dual-phase regulation. Consider the integrated linear regulator if minimizing external component count is critical. Evaluate the need for external FETs if higher power capacity beyond 60A is required. Ensure the application environment stays within the specified -40°C to 125°C junction temperature range for reliable operation.

Part Context

This part belongs to the Maxim Integrated MAX20796 family of high-performance switching regulators. It is specifically engineered for network and communication terminal devices where space efficiency and thermal performance are paramount. The device complements other controllers in the portfolio by offering a balance of integration, programmability, and robust protection features suitable for modern digital loads.

Replacement Considerations

Publicly confirmed substitute part numbers for the MAX20796AGFB+T are not available in the provided reference data. Designers should consult official Analog Devices documentation for potential cross-reference options or updated product line replacements.