LTC3874IUF-1#TRPBF

DC DC Switching Controllers Overview

The LTC3874IUF-1#TRPBF is a PolyPhase Buck Synchronous Slave Controller manufactured by Analog Devices Inc. It operates with a switching frequency range of 250 kHz to 1 MHz and supports an output current capability of 120 A. The device accepts an input voltage between 3.5 V and 5.5 V, while the operating supply voltage ranges from 4.5 V to 38 V. It features rise and fall times of 30 ns and draws a typical operating supply current of 4.6 mA. Packaged in a QFN-24 surface-mount format, it functions as a non-isolated controller within the -40°C to +125°C temperature range.

DC DC Switching Controllers Feature Summary

• Synchronizes with upstream master controllers for multi-phase power distribution
• Enables high-current delivery through parallel operation capabilities
• Integrates fast transient response control via sub-milliohm sensing

DC DC Switching Controllers Applications

• High-density server and data center voltage regulation modules
• Telecommunications point-of-load conversion systems
• Industrial equipment requiring synchronized multi-phase buck topologies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official documentation to confirm tape-and-reel packaging versus tube variants. Confirm that the component meets required RoHS standards and environmental specifications for the target application. Ensure compatibility with existing master controller signals before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this slave controller when designing systems requiring synchronization with a primary master regulator. Evaluate thermal management requirements given the 120 A current handling capacity. Verify that the QFN-24 package footprint aligns with PCB layout constraints and that the input voltage range matches the system's available power rails.

DC DC Switching Controllers Part Context

This component belongs to the LTC3874 series of PolyPhase Buck controllers designed for high-efficiency power management. It complements master controllers to distribute load currents across multiple phases, reducing input and output capacitance requirements. The series targets applications demanding precise voltage regulation and rapid dynamic response under heavy load conditions.

DC DC Switching Controllers Replacement Considerations

Consult official substitution lists for compatible slave controllers within the same family. Verify pinout compatibility and control signal interfaces before replacing the component. Ensure that any alternative part maintains the required switching frequency range and current sharing characteristics.