LT3501IFE#TRPBF

Overview

The LT3501IFE#TRPBF is a dual synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It operates within an input voltage range of 3.1V to 25V and provides two adjustable positive outputs, each capable of delivering up to 3A of current. The minimum output voltage is set at 0.8V, with a maximum limit of 23.75V per channel. The device supports switching frequencies between 250kHz and 1.5MHz. It is housed in a 20-TSSOP package with an exposed pad (EP) for thermal management. The component functions reliably across a junction temperature range of -40°C to 125°C.

Feature Summary

• Dual independent synchronous buck converters integrated into a single package
• Adjustable output voltage control via external resistor networks
• Integrated power switches supporting high continuous load currents
• Wide operating input voltage range suitable for various bus architectures

Applications

• Point-of-load regulation for digital signal processors
• Power distribution systems requiring multiple voltage rails
• Industrial equipment power supply modules
• Communication infrastructure board-level power conversion

Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging configuration when sourcing. Confirm RoHS compliance status aligns with project environmental requirements. Ensure the supplier source matches official Analog Devices distribution channels to guarantee authenticity. Cross-reference the manufacturer part number against the latest datasheet revision to validate pinout and electrical specifications before integration.

Selection Notes

Select this component when dual isolated or non-isolated buck conversions are required from a single intermediate bus voltage. Evaluate thermal performance based on the 20-TSSOP-EP package capabilities under expected load conditions. Consider the programmable frequency range to optimize inductor size and minimize electromagnetic interference. Verify that the input voltage profile remains within the specified 3.1V to 25V operational window during all transient states.

Part Context

This part belongs to the LT3501 family of dual synchronous step-down regulators. It serves as a compact solution for applications needing two regulated outputs from a common input source. The design integrates control logic, drivers, and power MOSFETs to reduce external component count. It targets space-constrained designs requiring efficient power management without sacrificing current delivery capacity.

Replacement Considerations

LT3501EFE#TRPBF is documented as a parameter-equivalent substitute.