LTC3858EUH#TRPBF

DC DC Switching Controllers Overview

The LTC3858EUH#TRPBF is a low quiescent current, dual-channel synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 38V and supports output voltages from 800mV to 24V. The device features adjustable switching frequencies between 50kHz and 900kHz and delivers up to 25A per channel. It utilizes a 32-lead QFN package and maintains a typical static current of 8µA. The controller includes integrated soft-start, tracking capabilities, and power good indicators, functioning within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture supporting independent or interleaved synchronous buck operation
• Ultra-low quiescent current consumption for enhanced efficiency in standby modes
• Integrated programmable frequency control and phase synchronization capabilities
• Comprehensive protection features including thermal regulation and current limiting

DC DC Switching Controllers Applications

• High-output voltage poly-phase buck converters
• Telecommunications infrastructure power distribution
• Industrial equipment power management systems
• Server and networking hardware voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration distinct from tube variants. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure component authenticity via authorized distribution channels to mitigate counterfeiting risks. Validate pinout compatibility with existing PCB footprints during the design-in phase.

DC DC Switching Controllers Selection Notes

Select this controller when dual isolated outputs or high-current interleaved phases are required from a single IC solution. Consider the wide input voltage range suitable for 12V or 24V nominal bus systems. Evaluate thermal performance requirements given the QFN package constraints. Compare against single-channel alternatives if only one regulated rail is necessary to optimize board space.

DC DC Switching Controllers Part Context

This component belongs to the LTC3858 family of low IQ synchronous buck controllers. It shares functional similarities with the LTC3858EGN-1 but differs in package type and manufacturing lot specifications. The EUH designation specifically identifies the 32-lead QFN form factor optimized for surface-mount assembly processes in compact power designs.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.