LTC3869IUFD#PBF

DC DC Switching Controllers Overview

The LTC3869IUFD#PBF is a dual synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.75V to 18V and supports output voltages from 0.6V to 12.5V with a maximum output current of 30A per channel. The device features a switching frequency adjustable between 450kHz and 550kHz, utilizing a 28-lead QFN package. It includes integrated power MOSFET drivers and offers low quiescent current operation suitable for high-efficiency applications.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture enabling independent or synchronized buck regulation
• Integrated gate drivers for external N-channel power MOSFETs
• Adjustable switching frequency for optimized efficiency and component size
• Low quiescent current operation to minimize standby power consumption

DC DC Switching Controllers Applications

• Industrial point-of-load regulation
• Telecommunications infrastructure power distribution
• Embedded computing systems requiring dual voltage rails

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance before ordering. Confirm the IUFD package variant matches your PCB footprint requirements. Check official distributor channels for current availability as supply status may vary. Ensure compatibility with your system's thermal management design given the QFN package constraints.

DC DC Switching Controllers Selection Notes

Select this controller when dual isolated or non-isolated outputs are required from a single input source. Compare against single-channel alternatives if only one rail is needed to reduce BOM cost. Verify that the external MOSFET selection aligns with the driver capabilities and the target 30A current specification. Consider the 450kHz to 550kHz frequency range for inductor sizing trade-offs.

DC DC Switching Controllers Part Context

This component belongs to the LTC3869 family of dual synchronous buck controllers designed for high-current applications. It shares architectural similarities with other members like the LTC3868 but differs in pinout and specific electrical characteristics. The series focuses on providing flexible power delivery solutions for complex multi-rail systems in industrial and telecom environments.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3869IGN-2#PBF which shares identical electrical specifications but utilizes an SSOP-28 package instead of QFN-28. Verify pin-to-pin compatibility and thermal performance differences due to package variation before substitution.