LTC3874IUFD#PBF

DC DC Switching Controllers Overview

The LTC3874IUFD#PBF is a synchronous step-down switching controller designed for high-current applications. It operates with an input voltage range of 4.5 V to 38 V and supports output voltages from 0.6 V to 12.5 V. The device features a programmable switching frequency between 250 kHz and 1 MHz. It provides precise current mode control with sub-milliohm sense capability, supporting up to 120 A of output current. Operating temperatures range from -40°C to +125°C. The component is housed in a 24-lead QFN package.

DC DC Switching Controllers Feature Summary

• Supports parallel operation for multi-phase configurations to increase current capacity
• Integrates precision current mode control with low-side MOSFET RDS(ON) sensing
• Features adjustable soft-start and tracking capabilities for synchronized power rails

DC DC Switching Controllers Applications

• High-performance server and workstation power distribution
• Telecommunications base station power supplies
• Industrial equipment central power buses

DC DC Switching Controllers Procurement Notes

Verify the specific suffix and temperature grade against the official Analog Devices datasheet to ensure compatibility with system requirements. Confirm that the QFN-24 package thermal characteristics meet the design's heat dissipation needs. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring high efficiency and precise load regulation at currents exceeding standard single-phase limits. Ensure the external MOSFET selection aligns with the sub-milliohm sensing range for optimal performance. Consider the required phase count and switching frequency to balance ripple current against passive component size constraints.

DC DC Switching Controllers Part Context

This component belongs to the LTC3874 family of PolyPhBuck controllers, which are optimized for multiphase buck converter topologies. It complements other Analog Devices PMIC solutions by providing scalable power management for demanding digital loads. The series emphasizes compact footprint and high dynamic response for modern computing architectures.

DC DC Switching Controllers Replacement Considerations

Consult the official Analog Devices replacement guide for verified cross-references. No direct substitute part numbers are confirmed in the provided documentation.