MAX20028ATJC/VY+T

Overview

The MAX20028ATJC/VY+T is an automotive-grade step-down controller featuring dual integrated 2.1MHz DC-DC converters. It operates with an input voltage range of 3.5V to 36V and provides three independent outputs adjustable from 0.8V to 3.95V. Each converter channel delivers up to 1.5A of output current. The device supports switching frequencies of 350kHz, 420kHz, 525kHz, 1.05MHz, and 2.1MHz, with a maximum duty cycle of 97.2%. It utilizes synchronous rectification and includes clock synchronization capabilities. The component is qualified to AEC-Q100 standards and functions within a temperature range of -40°C to 125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments
• Integrated dual high-frequency step-down converters enabling compact power solution design
• Synchronous rectification architecture for improved efficiency and thermal performance
• Flexible clock synchronization options to minimize system noise interference

Applications

• Automotive infotainment systems requiring stable multi-rail power distribution
• Digital cockpit modules needing synchronized low-noise power supplies
• Advanced driver assistance systems (ADAS) power management units

Procurement Notes

Verify the complete part number including suffixes such as +T for tape-and-reel packaging configuration. Confirm that the specific variant matches your required operating temperature grade and package type. Ensure compatibility with your board layout constraints regarding the 32-WETQFN footprint. Cross-reference official datasheets for latest revision details before finalizing procurement orders.

Selection Notes

Select this component when designing automotive electronics requiring multiple regulated rails from a single controller. The dual converter topology reduces component count compared to discrete solutions. Consider the 2.1MHz switching frequency for smaller passive components. Verify input voltage stability within the 3.5V to 36V range for your specific application environment.

Part Context

This device belongs to Maxim Integrated's portfolio of advanced power management ICs designed for demanding automotive applications. It integrates control logic with power stages to simplify board design. The family focuses on providing high-density power solutions with robust protection features suitable for harsh automotive electrical environments.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Check pin-to-pin compatibility and electrical parameter overlaps before considering any substitute components.