LT3988HMSE#TRPBF

Overview

The LT3988HMSE#TRPBF is a dual-channel synchronous step-down DC-DC converter manufactured by Analog Devices Inc. It features two independent channels, each capable of delivering up to 1A of output current. The device supports an input voltage range from 4.1V to 60V and provides adjustable output voltages between 0.75V and 59.4V per channel. Operating with a switch frequency selectable from 250kHz to 2.15MHz, it utilizes a 16-lead MSOP package with an exposed thermal pad for efficient heat dissipation.

Feature Summary

• Dual-channel architecture providing independent control over two separate power rails
• Integrated high-side N-channel MOSFETs for efficient synchronous rectification
• Wide input voltage capability supporting direct connection to 48V systems
• Programmable switching frequency allows optimization for size or efficiency

Applications

• Industrial equipment requiring multiple regulated voltage rails
• Distributed power architectures in telecommunications infrastructure
• Point-of-load regulation for digital signal processors and FPGAs
• Automotive electronics operating within standard voltage ranges

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the HMSE variant meets the required junction temperature specifications for your application environment. Ensure compatibility with the intended PCB footprint for the 16-MSOP-EP package before finalizing procurement plans.

Selection Notes

Select this component when dual isolated outputs are required from a single high-voltage source. Consider the thermal performance of the exposed pad design for high-current applications. Evaluate the minimum on-time constraints at low duty cycles if stepping down from very high input voltages.

Part Context

This part belongs to the LT3988 family of dual synchronous buck regulators designed for high-efficiency power conversion. It shares architectural similarities with other high-voltage converters but distinguishes itself through its dual-channel integration, reducing board space compared to using two separate single-channel devices.

Replacement Considerations

LT3988EMSE#PBF serves as a tube-packaged alternative within the same functional family.