MAX20458ATIF/VY+T

Overview

The MAX20458ATIF/VY+T is a high-voltage switching voltage regulator manufactured by Analog Devices Inc./Maxim Integrated. It functions as a boost controller integrated with a synchronous buck converter, supporting input voltages up to 36V. The device features a 4A synchronous buck output and is housed in a 28-WFQFN package with exposed pad for surface mount installation. Designed for robust power management, it operates within a temperature range of -40°C to 125°C and includes wettable flank technology for enhanced inspection reliability.

Feature Summary

• Integrates a high-voltage boost controller with a synchronous buck converter for combined power conversion needs.
• Features a 4A synchronous buck output stage capable of handling significant current loads.
• Utilizes a 28-WFQFN package with exposed pad and wettable flank design for reliable surface mounting.

Applications

• Industrial power supply systems requiring high-voltage input regulation
• Automotive electronics utilizing 36V bus architectures
• Telecommunications infrastructure power management modules

Procurement Notes

Verify the complete part number including suffixes such as /VY+T against official Analog Devices documentation to ensure correct packaging and compliance specifications. Confirm availability status through authorized distributors as stock levels may vary. Ensure compatibility with your PCB footprint regarding the 28-WFQFN exposed pad dimensions and thermal requirements before finalizing procurement orders.

Selection Notes

Select this component when a single IC solution is required for both step-up and step-down voltage conversion from a high-voltage source. Consider the 36V maximum input rating and the specific current capabilities of the integrated buck stage. Evaluate the thermal performance requirements associated with the 28-WFQFN package and ensure adequate board space for the exposed pad thermal dissipation path.

Part Context

This part belongs to the MAX204xx series of high-voltage power management ICs from Maxim Integrated, now part of Analog Devices. These devices are engineered for demanding applications where space efficiency and high voltage tolerance are critical. The series typically integrates multiple power stages to reduce component count and simplify system design for industrial and automotive environments.

Replacement Considerations

Check for direct pin-to-pin replacements within the MAX204xx family or other Analog Devices high-voltage controllers. Verify that any substitute matches the 36V input rating, 4A buck current capability, and 28-WFQFN package outline. Consult official cross-reference guides for validated alternatives.