LT3980EDE#PBF

Overview

The LT3980EDE#PBF is a synchronous step-down DC/DC converter IC manufactured by Analog Devices Inc. It features an adjustable output voltage range from 0.79V to 57.42V with a maximum continuous output current of 2A. The device supports an input voltage range between 3.6V and 58V. Operating frequencies are programmable from 225kHz to 2.25MHz. It utilizes a 14-WFDFN package with an exposed pad for thermal management, rated for junction temperatures up to 125°C.

Feature Summary

• Integrated synchronous rectification architecture for high efficiency
• Programmable switching frequency allows optimization for size or performance
• Wide input voltage capability suitable for various supply rails
• Adjustable output voltage via external resistor divider

Applications

• Industrial point-of-load regulation
• Telecommunications power distribution
• Automotive electronics systems
• Embedded computing platforms

Procurement Notes

Verify the specific suffix #PBF confirms lead-free and RoHS compliance status before procurement. Confirm the DE package variant matches the required footprint dimensions. Ensure the ordering part number aligns exactly with the intended temperature grade and packaging format to avoid integration errors during assembly.

Selection Notes

Select this component when a wide input voltage range exceeding standard 42V limits is required. The synchronous design reduces external component count compared to non-synchronous alternatives. Consider the thermal performance of the exposed pad DFN package for high-current applications requiring efficient heat dissipation without additional heatsinking.

Part Context

This part belongs to the LT3980 family of high-voltage synchronous buck converters. It is designed for applications demanding robust performance across wide input ranges. The device integrates power switches and control logic into a compact form factor, simplifying board layout while maintaining regulatory compliance standards for industrial environments.

Replacement Considerations

LT3980IDE#PBF offers similar functionality with potential differences in operating temperature range or package variant.