LTC3868IUFD-1#TRPBF

DC DC Switching Controllers Overview

The LTC3868IUFD-1#TRPBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 24V and supports output voltages from 800mV to 14V. The device delivers up to 25A per channel, utilizing a QFN-28 package for surface mount installation. Switching frequencies are adjustable between 75kHz and 850kHz. It features low quiescent current of 170uA and maintains load regulation at 0.01%. The operational temperature range spans from -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture providing independent control for two synchronous buck converters
• Integrated phase synchronization capability for multi-phase power distribution applications
• Programmable switching frequency allowing optimization for efficiency and component size
• Low quiescent current operation enhancing system efficiency during light-load conditions

DC DC Switching Controllers Applications

• High-density server and workstation power supplies
• Distributed power architectures in telecommunications equipment
• Industrial automation control systems requiring stable dual rails
• Networking infrastructure powering multiple logic levels

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the IUFD designation corresponds to the industrial temperature grade and QFN-28 footprint required for your design. Ensure compatibility with existing bill of materials regarding pinout and thermal requirements before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring two isolated or non-isolated buck outputs from a single intermediate bus voltage. Consider the 25A current capability per channel against total system load demands. Evaluate the 75kHz to 850kHz frequency range to balance magnetic component size against switching losses. Verify that the 4V to 24V input range aligns with available supply rails in the target application environment.

DC DC Switching Controllers Part Context

This component belongs to the LTC3868 family of PolyPhase controllers designed for high-current digital point-of-load applications. It complements other Analog Devices power management solutions by offering precise current sharing and fast transient response capabilities. The device integrates essential protection features while maintaining compact board space utilization through its advanced packaging technology.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.