LT3514IUFD#TRPBF

Overview

The LT3514IUFD#TRPBF is a triple step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.2V to 36V and provides three adjustable positive outputs, each capable of delivering up to 2A. The device features a switch frequency range from 350kHz to 2.2MHz and maintains a quiescent current of 2.7mA. It is housed in a 28-lead QFN package with exposed pad, designed for surface mount installation, and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates three independent synchronous buck converters within a single compact package
• Supports 100% duty cycle operation for minimal dropout voltage requirements
• Features adjustable switching frequency to optimize efficiency and external component size
• Includes internal soft-start circuitry to limit inrush current during startup

Applications

• Portable equipment requiring multiple power rails
• Industrial control systems with distributed power architectures
• Automotive infotainment and instrumentation modules
• Communication infrastructure power distribution networks

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the IUFD designation corresponds to the industrial temperature grade and QFN-28 package variant. Cross-reference the manufacturer datasheet for the latest material declarations and compliance status before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring three isolated or common ground regulated outputs from a single high-voltage source. Ensure the input voltage remains within the 3.2V to 36V window. Evaluate thermal performance based on the total load current across all three channels, as heat dissipation occurs through the exposed pad of the QFN package.

Part Context

This part belongs to the LT3514 family of triple output DC/DC converters. It shares functional similarities with other multi-channel regulators but distinguishes itself through its wide input voltage capability and high current density per channel. The family targets applications needing space-efficient power solutions without sacrificing individual channel regulation quality.

Replacement Considerations

LT3514EUFD#PBF offers identical electrical specifications but utilizes tube packaging instead of tape and reel.