LT8471HFE#PBF

Overview

The LT8471HFE#PBF is a dual multitopology DC/DC converter featuring two independent 2A switches. It supports buck, boost, inverting, and SEPIC configurations within a single package. The device integrates a 3MHz fixed-frequency oscillator with spread spectrum modulation to reduce EMI. Synchronization capability allows locking the switching frequency to an external clock. It operates from a 2.7V to 36V input supply range and includes comprehensive protection features such as thermal shutdown and current limit.

Feature Summary

• Dual independent channels supporting multiple topologies including buck, boost, inverting, and SEPIC
• Integrated 2A power switches for high current density applications
• Spread spectrum modulation for reduced electromagnetic interference
• External synchronization input for noise immunity

Applications

• Industrial control systems requiring isolated or non-isolated dual rails
• Automotive electronics with wide input voltage ranges
• Telecommunications infrastructure power distribution
• Portable equipment needing efficient multi-output power solutions

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and packaging type. Ensure compatibility with your PCB footprint and thermal management strategy. Cross-reference the datasheet revision date to confirm feature availability. Confirm RoHS compliance status through the manufacturer's official declaration rather than distributor summaries.

Selection Notes

Select this component when dual output flexibility is required without using separate controllers. The integrated switches simplify bill of materials compared to discrete solutions. Consider the thermal performance in TSSOP-28 packages for high load conditions. Evaluate the need for synchronization if operating in noisy environments with other switching converters.

Part Context

This part belongs to the LT8471 family of multitopology converters. It shares architectural similarities with other Linear Technology dual-channel devices but offers unique topology flexibility. The HFE suffix indicates a specific industrial temperature range variant. It serves as a versatile alternative to dedicated buck or boost converters in complex power architectures.

Replacement Considerations

LT8471EFE#PBF is a verified equivalent offering identical electrical specifications. LT8471EFE#TRPBF provides the same functionality in tape and reel packaging. Verify pinout compatibility and thermal characteristics before substitution. Check for any minor differences in recommended external component values.