LT8210IUJ#PBF

Overview

The LT8210IUJ#PBF is a synchronous four-switch buck-boost DC/DC controller from Analog Devices, designed for high-voltage applications with input and output voltages up to 100V. It operates in PassThru, forced continuous, pulse skip, and Burst modes. The device supports an output voltage range of 1V to 100V and delivers up to 2.5A output current. Key electrical parameters include a minimum input voltage of 2.8V, a typical quiescent current of 4µA, and a switching frequency of 400kHz. It features load regulation of 1.8% and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Supports direct PassThru operation when input voltage falls within the user-programmable window
• Integrates four synchronous switches for efficient buck and boost conversion topologies
• Offers multiple operating modes including forced continuous, pulse skip, and Burst mode for optimized efficiency across load ranges

Applications

• Industrial power supplies requiring wide input/output voltage ranges
• Battery-powered systems with varying cell counts
• Automotive electronics operating under fluctuating line conditions
• Distributed power architectures in telecom infrastructure

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 (PCNs) affecting specifications or manufacturing sites. Ensure the QFN-40 package matches design requirements. Validate supply chain integrity due to potential limited availability constraints.

Selection Notes

Select this controller for designs demanding high voltage tolerance and flexible topology. Consider thermal management needs given the 2.5A capability and QFN-40 package. Evaluate external component selection for inductors and capacitors to support the 400kHz switching frequency. Ensure gate drive capabilities match external MOSFET requirements. Verify that the 100V rating aligns with system peak voltage stresses.

Part Context

Part of the LT8210 family, which includes variants like LT8210EUJ#PBF. These controllers share core functionality but may differ in temperature grades or specific electrical characteristics. The IUJ suffix indicates industrial temperature range performance. The #PBF designation confirms lead-free and halogen-free construction compliant with environmental standards.

Replacement Considerations

LT8210EUJ#PBF serves as a verified alternative within the same product family, sharing identical functional specifications and pinout compatibility.