LT3506AIDHD#TRPBF

Overview

The LT3506AIDHD#TRPBF is a dual monolithic step-down switching regulator manufactured by Analog Devices Inc. It integrates two independent 1.6A buck converters within a single 16-lead DFN package. The device operates from an input voltage range of 3.6V to 25V and provides adjustable output voltages from 0.8V to 23.25V per channel. It features a fixed 575kHz switching frequency, synchronous rectification for high efficiency, and supports parallel operation for increased current capability.

Feature Summary

• Dual integrated 1.6A synchronous buck converters in a compact footprint
• Wide input voltage range supporting various power supply architectures
• Integrated soft-start functionality limits inrush current during startup
• Thermal shutdown and cycle-by-cycle current limiting for robust protection

Applications

• Point-of-load regulation for industrial equipment
• Power distribution systems requiring multiple voltage rails
• Embedded systems with space-constrained designs
• Telecommunications infrastructure power supplies

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the ID variant corresponds to the industrial temperature range requirements for your application. Ensure compatibility with the 16-lead DFN EP footprint during PCB layout. Cross-reference official datasheets for any recent manufacturing changes or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when dual isolated or non-isolated low-voltage outputs are required from a higher voltage bus. The 1.6A per channel rating suits moderate load applications without external pass transistors. Consider the 575kHz frequency trade-off between component size and efficiency. Verify that the thermal performance of the DFN package meets the ambient operating conditions of the target enclosure.

Part Context

This part belongs to the LT3506 family of dual step-down regulators designed for high-density power solutions. It complements other Linear Technology products by offering integrated synchronization and tracking capabilities. The DFN package allows for reduced board area compared to traditional SOIC packages while maintaining thermal performance through an exposed pad.

Replacement Considerations

LT3506AEDHD#TRPBF: Same functional specifications but packaged in tubes instead of tape-and-reel.