LT3579IUFD-1#TRPBF

Overview

The LT3579IUFD-1#TRPBF is a high-performance switching regulator IC manufactured by Analog Devices Inc. It integrates a 6A switch and supports multiple topologies including boost, inverting, Cuk, flyback, and SEPIC configurations. The device operates with an input voltage range of 2.5V to 16V and provides an adjustable output voltage from 1.215V up to 42V. It features a programmable switching frequency ranging from 200kHz to 2.5MHz. Packaged in a 20-WFQFN exposed pad, it includes comprehensive fault protection mechanisms.

Feature Summary

• Integrates a high-current 6A internal switch for robust power delivery across various DC/DC converter topologies.
• Supports versatile circuit configurations including boost, inverting, Cuk, flyback, and SEPIC architectures.
• Features programmable switching frequency allowing optimization for efficiency or component size requirements.

Applications

• Industrial power supply systems requiring flexible topology options
• Automotive electronics utilizing wide input voltage ranges
• Telecommunications infrastructure equipment

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the -1 variant designation matches the required pinout or functional configuration for your design. Ensure compatibility with the 20-WFQFN package footprint during PCB layout. Cross-reference the datasheet for thermal performance requirements associated with the exposed pad.

Selection Notes

Select this component when designing circuits that require high current capability combined with topology flexibility. The adjustable frequency allows designers to balance between magnetic component size and electromagnetic interference levels. Verify that the external components selected support the maximum 42V output rating and the 6A switch current limits under all operating conditions.

Part Context

This part belongs to the LT3579 family of switching regulators designed for demanding applications. The IUFD suffix denotes the industrial temperature grade and the specific QFN package type. The -1 variant typically distinguishes specific internal configurations or pinouts compared to the standard LT3579 model within the same product line.

Replacement Considerations

LT3579IUFD#PBF

FAQ

What switching topologies are supported by the LT3579IUFD-1?

The device supports boost, inverting, Cuk, flyback, and SEPIC topologies.

What is the maximum output voltage capability?

The maximum output voltage is rated at 42V.