LT8640JUDCF-1#WTRPBF

Overview

The LT8640JUDCF-1#WTRPBF is an automotive-grade synchronous step-down Silent Switcher regulator from Analog Devices. It supports a 3.4V to 42V input range and delivers up to 5A output current with adjustable voltage from 970mV to 41.9V. Operating at frequencies between 200kHz and 3MHz, it features 2.5µA quiescent current and AEC-Q100 qualification. The device utilizes a 20-WFQFN package with exposed pad for surface mount installation.

Feature Summary

• Integrated EMI reduction technology via Silent Switcher architecture
• Automotive reliability certified under AEC-Q100 standards
• High efficiency synchronous buck topology with low standby consumption

Applications

• Automotive infotainment systems
• Telematics control units
• ADAS sensor power supplies

Procurement Notes

Verify the specific suffix WTRPBF indicates tape-and-reel packaging distinct from tube variants. Confirm AEC-Q100 grade availability matches project requirements. Cross-reference datasheet revision dates to ensure parameter consistency. Validate RoHS compliance status prior to integration.

Selection Notes

Select this variant for applications requiring automotive certification and high input voltage tolerance. Compare quiescent current specifications against system sleep mode requirements. Ensure thermal design accommodates the QFN package dissipation limits. Verify switching frequency compatibility with external component selection.

Part Context

Part of the LT8640 Silent Switcher family designed for demanding environments. Combines high power density with electromagnetic interference mitigation. Targets industrial and automotive sectors requiring robust DC-DC conversion solutions.

Replacement Considerations

LT8640JUDCF#WTRPBF serves as the non-variant equivalent within the same series.