MAX20796AGFB+

Overview

The MAX20796AGFB+ is a fully integrated, high-efficiency two-phase switching regulator designed for demanding power delivery applications. It supports input voltages from 4.5V to 16V and delivers up to 60A of load current, expandable to 90A with an optional external third phase. The output voltage is configurable between 0.5V and 5.5V. Operating within a junction temperature range of -40°C to 125°C, the device utilizes a fixed-frequency control scheme for rapid transient response. It is housed in a compact 35-pin 4 x 10.5mm FC2QFN package with 0.5mm pitch.

Feature Summary

• Integrates linear regulators to enable single-supply operation while maintaining high system efficiency.
• Supports both coupled and discrete inductor topologies to optimize performance and minimize passive component count.
• Features programmable parameters including soft-start timing, switching frequency, and overcurrent trip points via external resistors.

Applications

• Point-of-load voltage regulation for microprocessor chipsets
• Power delivery for server and telecommunications infrastructure
• Memory VDDQ and I/O power supplies in storage devices

Procurement Notes

Verify the specific suffix 'AGFB+' against official Analog Devices documentation to confirm pinout and thermal characteristics. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure PCB land patterns match the 35-pin FC2QFN footprint specifications exactly to prevent soldering defects during surface mount processing.

Selection Notes

Select this component when designing systems requiring high current density and fast transient response from a 12V or similar bus. Evaluate the need for external third-phase capability if peak loads exceed 60A. Consider the thermal dissipation requirements of the FC2QFN package relative to the expected ambient operating conditions and airflow constraints within the target enclosure.

Part Context

This part belongs to the Maxim Integrated family of highly integrated switching regulators, now under Analog Devices Inc. It represents a solution for compact, efficient power stages used in complex digital systems where space and thermal management are critical constraints. The design philosophy focuses on reducing bill-of-materials complexity by integrating control loops and drivers into a single small form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.