LTC3859ALMPFE#TRPBF

DC DC Switching Controllers Overview

The LTC3859ALMPFE#TRPBF is a triple-output synchronous DC/DC switching regulator controller manufactured by Analog Devices Inc. It supports Buck, Buck, and Boost topologies with an input voltage range of 4.5V to 38V. The device features a constant frequency current mode architecture allowing phase-lockable switching frequencies up to 850kHz. It operates within a junction temperature range of -40°C to 125°C and is housed in a 38-lead QFN package.

DC DC Switching Controllers Feature Summary

• Supports three independent output channels configured as dual buck and one boost converter
• Drives all N-channel power MOSFET stages for high efficiency
• Features low quiescent current operation with Burst Mode capability
• Includes integrated soft start, tracking, and power good monitoring

DC DC Switching Controllers Applications

• Telecommunications infrastructure power distribution
• Industrial equipment requiring multiple regulated rails
• Automotive electronics systems
• Embedded computing platforms

DC DC Switching Controllers Procurement Notes

Verify the specific suffix MPFE against official Analog Devices documentation to confirm pinout and thermal pad configuration. Ensure compatibility with the required operating temperature grade and packaging specifications before integration into the design.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring three distinct voltage rails from a single wide-input source. It is suitable for applications needing synchronized multi-phase operation or mixed buck/boost topologies within a compact footprint.

DC DC Switching Controllers Part Context

This part belongs to the LTC3859 family of triple-output controllers. It shares architectural similarities with other members like the LTC3859EUHF but differs in specific electrical characteristics and package variations defined by the manufacturer's product line structure.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include LTC3859EUHF#TRPBF and LTC3859AIUHF#TRPBF. Verify that the alternative package type and specific performance grades meet the original design requirements.