LTC3868IUFD-1#PBF

DC DC Switching Controllers Overview

The LTC3868IUFD-1#PBF is a dual-phase synchronous step-down switching controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4 V to 24 V and delivers up to 25 A per output channel across two independent outputs. The device supports adjustable output voltages from 800 mV to 14 V and features a programmable switching frequency between 75 kHz and 850 kHz. It utilizes a QFN-28 package, maintains a quiescent current of 170 uA, and ensures precise load regulation of 0.01%. The component functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture providing independent control for two separate synchronous buck converters
• Integrated low IQ operation minimizing standby power consumption during idle states
• Programmable switching frequency allowing optimization for efficiency or component size
• Precision tracking capability ensuring accurate synchronization between multiple phases

DC DC Switching Controllers Applications

• High-density point-of-load (POL) conversion in telecommunications infrastructure
• Power distribution networks for industrial equipment requiring multi-rail supplies
• Server and storage systems demanding efficient voltage regulation under dynamic loads
• Embedded computing platforms utilizing low-voltage high-current processor cores

DC DC Switching Controllers Procurement Notes

Verify the specific suffix '#PBF' confirms lead-free RoHS compliance when sourcing. Confirm the 'I' grade designation matches the required operating temperature range for your application environment. Ensure the QFN-28 footprint aligns with your PCB layout constraints. Cross-reference the datasheet revision against your design specifications to validate pinout compatibility. Check manufacturer announcements for any lifecycle status changes affecting long-term availability.

DC DC Switching Controllers Selection Notes

Choose this controller when designing systems requiring two isolated or synchronized low-voltage rails from a single intermediate bus voltage. Evaluate the thermal performance of the QFN-28 package against your board's copper area capabilities. Consider the minimum output voltage limit of 800 mV to ensure it meets the lowest core voltage requirements of your target processors. Assess the maximum input voltage of 24 V to confirm compatibility with your system's power supply architecture.

DC DC Switching Controllers Part Context

This component belongs to the LTC3868-1 series of dual-phase synchronous buck controllers. It is part of Analog Devices' portfolio focused on high-efficiency power management solutions. The device complements other single-phase controllers like the LTC3867 by offering increased current density through phase interleaving. It serves as a critical interface between higher voltage buses and sensitive low-voltage digital loads.

DC DC Switching Controllers Replacement Considerations

LTC3868IUFD-1#TRPBF offers identical electrical characteristics but utilizes tape-and-reel packaging instead of tubes.