LT8210IUJ#TRPBF

Overview

The LT8210IUJ#TRPBF is a synchronous 4-switch buck-boost DC/DC controller from Analog Devices, designed for high-voltage applications with input and output voltages up to 100V. It operates within an input range of 2.8V to 100V and delivers an output current of 2.5A. The device features a fixed switching frequency of 400kHz and ultra-low static current of 4µA. It supports multiple operating modes including passthru, forced continuous, pulse-skipping, and Burst Mode. The controller offers precise load regulation of 1.8% and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Supports synchronous 4-switch buck-boost topology with integrated pass-thru capability for direct input-to-output transfer when voltages are compatible.
• Enables flexible operation through selectable modes including forced continuous, pulse-skipping, and low-noise Burst Mode for optimized efficiency under varying loads.
• Provides comprehensive control features such as programmable soft start, cycle-by-cycle current limiting, phase synchronization, and power good indication.

Applications

• Industrial power supplies requiring wide input voltage ranges
• Battery-powered systems with cells ranging from single-cell Li-ion to multi-cell configurations
• Automotive electronics operating in harsh thermal environments
• Portable devices needing efficient power management across discharge cycles

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status via official documentation. Check for recent Product Change Notifications (PCN) affecting package or material specifications. Ensure storage conditions meet manufacturer guidelines to prevent moisture sensitivity issues prior to soldering.

Selection Notes

Select this controller for designs requiring high voltage tolerance and bidirectional energy flow capabilities. Consider the QFN-40 package for compact PCB layouts. Evaluate thermal performance given the 125°C junction temperature rating. Compare against non-synchronous alternatives if cost is critical, noting that synchronous design improves efficiency at higher currents.

Part Context

Part of the LT8210 family, which includes variants like LT8210EUJ#PBF differing primarily in temperature grade and packaging format. The IUJ suffix indicates industrial temperature range (-40°C to +125°C). The #TRPBF designation specifies tape-and-reel packaging for automated assembly processes.

Replacement Considerations

LT8210EUJ#PBF serves as a verified alternative within the same family, offering identical electrical characteristics but potentially different environmental qualification or packaging options depending on specific lot requirements.