LT8608IDC#TRMPBF

Overview

The LT8608IDC#TRMPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It integrates a 42V, 1.5A power switch and supports up to 2.5A quasi-constant current output. The device operates with an input voltage range of 3.8V to 42V and provides a regulated output adjustable from 0.8V to 40V. It features a fixed 1.2MHz switching frequency and includes programmable soft-start functionality. The component is housed in a thermally enhanced 10-lead DFN package.

Feature Summary

• Integrates a high-voltage 42V synchronous buck converter with a 1.5A internal power switch for compact design.
• Supports quasi-constant current (QCC) mode operation suitable for driving LED strings or battery charging applications.
• Features low EMI performance through spread spectrum modulation to minimize conducted and radiated noise.
• Includes comprehensive protection mechanisms such as over-current, over-voltage, and thermal shutdown.

Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• LED lighting drivers utilizing constant current regulation
• Battery charging circuits for portable equipment
• Distributed power supply architectures in industrial automation

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout compatibility and thermal specifications. Ensure the ordering part number matches the required tape-and-reel quantity and RoHS compliance status. Cross-reference the date code and lot traceability if long-term availability is critical for production planning.

Selection Notes

Select this component when a wide input voltage range up to 42V is required alongside moderate current capabilities. It is appropriate for designs needing integrated EMI reduction without external filtering complexity. Consider the DFN package size constraints and thermal dissipation requirements relative to the expected load current and ambient temperature conditions.

Part Context

This part belongs to the LT8608 family of synchronous buck regulators designed for industrial and automotive applications. It shares architectural similarities with other high-voltage buck converters but is distinct in its specific 1.5A switch rating and QCC feature set. The ID suffix indicates the industrial temperature grade range.

Replacement Considerations

LT8608IDE#PBF