LT8602EUJ#PBF

Overview

The LT8602EUJ#PBF is a quad-channel, current-mode monolithic synchronous step-down regulator from Analog Devices. It integrates four independent buck converters synchronized to a single adjustable 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. Quiescent current is specified at 70 µA, with micropower Burst Mode operation reducing it to 30 µA. It features a programmable power-on reset and operates within a 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 wide input voltage ranges up to 42 V for high-side channels
• Features programmable power-on reset functionality
• Enables micropower Burst Mode operation for enhanced light-load efficiency

Applications

• Industrial systems requiring multiple isolated or non-isolated voltage rails
• Automotive electronics utilizing 12V or 24V bus architectures
• Telecommunications infrastructure equipment
• Embedded computing platforms needing compact multi-rail power solutions

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and thermal characteristics. Ensure the selected variant matches the required output current ratings for all four channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Cross-reference the datasheet revision date to validate parameter accuracy.

Selection Notes

Select this component when a compact solution for four distinct regulated outputs is required. It is suitable for designs where space constraints preclude using discrete regulators. Consider the thermal performance of the LQFP package relative to the total load current. Evaluate the need for external compensation components based on the desired switching frequency and output capacitance requirements.

Part Context

This part belongs to the LT8602 family of quad-channel synchronous step-down regulators. It shares architectural similarities with the LT8601, which offers three channels, and other members of the LT86xx series designed for high-efficiency power management. The device represents a consolidated approach to powering complex systems by integrating multiple converters into a single monolithic IC.

Replacement Considerations

LT8602ILXE#PBF: Offers identical electrical specifications but utilizes a 48-lead eLQFP package instead of the EUJ LQFP form factor.