LT8602ELXE#PBF

Overview

The LT8602ELXE#PBF is a quad-channel, monolithic synchronous step-down switching regulator manufactured by Analog Devices. It integrates four independent buck converters synchronized to a single programmable oscillator operating between 250 kHz and 2.2 MHz. The device supports an input voltage range of 3 V to 42 V for high-voltage channels and 2.6 V to 5.5 V for low-voltage channels. Output currents reach up to 1.5 A on OUT1, 2.5 A on OUT2, and 1.8 A on the low-voltage outputs. It features adjustable power-on reset, micropower Burst Mode operation with 70 µA quiescent current, and operates within a junction temperature range of -40°C to +125°C in a 48-lead LQFP package.

Feature Summary

• Integrates four independent synchronous buck regulators synchronized to a single oscillator
• Supports micropower Burst Mode operation for enhanced light-load efficiency
• Includes a programmable power-on reset function for system management
• Utilizes internal compensation for fast transient response and stability

Applications

• Industrial control systems requiring multiple isolated or non-isolated rails
• Automotive electronics with wide input voltage variations
• Distributed power architectures in telecommunications infrastructure
• Embedded computing platforms needing compact multi-output regulation

Procurement Notes

Verify the specific suffix ELXE against official Analog Devices documentation to confirm pinout compatibility and thermal pad configuration. Ensure the procurement channel provides valid RoHS compliance certificates. Confirm that the 48-LQFP package matches the target PCB footprint exactly. Check for any recent product change notifications regarding material composition or manufacturing site changes before finalizing orders.

Selection Notes

Select this component when a design requires four synchronized buck converters in a single package to minimize board space. It is suitable for applications demanding high input voltages up to 42 V. Consider the 70 µA quiescent current for battery-powered systems requiring extended standby life. Evaluate the thermal performance of the LQFP package against the expected total output current load to ensure adequate heat dissipation without external heatsinks.

Part Context

This part belongs to the LT8602 family of quad-channel regulators from Analog Devices. It shares architectural similarities with other members like the LT8602ILXE#PBF but differs in package type and specific electrical tolerances defined by the ELXE suffix. The family targets applications needing integrated multi-rail power solutions with synchronized switching to reduce electromagnetic interference through phase cancellation.

Replacement Considerations

LT8602ILXE#PBF is a documented alternative within the same family offering similar electrical characteristics in a different package variant.