LT3579EUFD-1#TRPBF

Overview

The LT3579EUFD-1#TRPBF is a high-efficiency, wide input voltage range synchronous step-up/step-down DC-DC converter manufactured by Analog Devices Inc. It operates as a boost, SEPIC, or inverting converter with an adjustable output voltage ranging from 1.215V to 42V. The device supports a maximum switch current of 6A and features a switching frequency between 200kHz and 2.5MHz. It includes integrated fault protection mechanisms and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Supports multiple topologies including boost, SEPIC, and inverting configurations for flexible power conversion.
• Integrates comprehensive fault protection features to ensure system reliability under abnormal conditions.
• Offers adjustable switching frequency up to 2.5MHz to optimize external component size and performance.

Applications

• Industrial control systems requiring isolated or non-isolated power rails
• Automotive electronics with varying input voltage ranges
• Portable equipment needing efficient step-up or step-down regulation

Procurement Notes

Verify the exact suffix TRPBF indicates tape and reel packaging when ordering. Confirm the EUFD variant specifications against the official Analog Devices datasheet to ensure compatibility with your thermal and electrical requirements. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a single IC must handle diverse DC-DC conversion topologies such as boost or inverting modes. Consider the 6A switch current capability and wide input voltage range for applications with fluctuating supply lines. Ensure the 20-QFN package fits the PCB layout constraints and thermal management strategy.

Part Context

This part belongs to the LT3579 series of multi-topology DC-DC converters. It shares core architecture with variants like LT3579IUFD but differs in specific electrical ratings and packaging options. The series is designed for applications requiring versatile power conversion without multiple discrete regulators.

Replacement Considerations

Direct substitutes include other LT3579 variants such as LT3579IUFD#TRPBF, provided the electrical parameters match the application needs. Verify pinout compatibility and thermal characteristics before substitution.

FAQ

What topologies does the LT3579EUFD-1#TRPBF support?

It supports boost, SEPIC, and inverting DC-DC converter configurations.

Is the output voltage fixed or adjustable?

The output voltage is adjustable, typically ranging from 1.215V to 42V depending on external components.