LTC3859ALHUHF#PBF

DC DC Switching Controllers Overview

The LTC3859ALHUHF#PBF is a high-performance triple output synchronous DC/DC switching regulator controller manufactured by Analog Devices Inc. It operates from a wide input supply range of 4.5V to 38V and supports Buck, Buck-Boost, and SEPIC topologies. The device features a constant frequency current mode architecture with a phase-lockable switching frequency up to 850kHz. It drives all N-channel power MOSFET stages and includes Burst Mode operation for low quiescent current. The component is housed in a 38-WFQFN package with exposed pad.

DC DC Switching Controllers Feature Summary

• Supports triple output configurations including Buck, Buck-Boost, and SEPIC topologies
• Features constant frequency current mode architecture with phase-lockable switching frequencies
• Includes Burst Mode operation for reduced quiescent current at light loads
• Drives all N-channel power MOSFET stages for efficient power conversion

DC DC Switching Controllers Applications

• Portable equipment requiring multiple voltage rails
• Industrial control systems with wide input ranges
• Automotive electronics applications
• Embedded systems with space constraints

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'L' indicates the extended temperature grade when sourcing this component. Confirm the '#PBF' designation ensures lead-free compliance and RoHS standards are met for your assembly requirements. Cross-reference the manufacturer's latest documentation to ensure the part number matches your exact thermal and electrical specifications before procurement.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring three independent regulated outputs from a single IC. It is suitable for applications needing a wide input voltage range up to 38V. Consider the 38-QFN package for compact board layouts. Ensure external components support the required current levels and switching frequencies for optimal performance.

DC DC Switching Controllers Part Context

This component belongs to the LTC3859A family of synchronous controllers. It shares architectural similarities with other members like the LTC3859IUHF but differs in temperature rating and packaging options. The family is designed for high-efficiency power management in multi-rail systems.

DC DC Switching Controllers Replacement Considerations

The LTC3859EUHF#TRPBF is a related variant within the same product family. Verify compatibility regarding operating temperature range and package type when considering substitutes.