LT3501EFE#TRPBF

Overview

The LT3501EFE#TRPBF is a dual-output synchronous step-down DC-DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 3.1V to 25V and provides two adjustable output channels, each capable of delivering up to 3A of current. The output voltage is adjustable from 0.8V to 23.75V. The device supports switching frequencies between 250kHz and 1.5MHz. It is housed in a 20-lead TSSOP package with an exposed thermal pad (EP) for improved heat dissipation. The component is rated for operation over a junction temperature range of -40°C to +125°C.

Feature Summary

• Dual independent output channels providing flexible power distribution
• Integrated high-side N-channel MOSFETs for efficient synchronous rectification
• Adjustable switching frequency allows optimization for size or efficiency
• Internal soft-start circuitry limits inrush current during startup

Applications

• Portable equipment requiring multiple regulated voltage rails
• Industrial control systems with diverse power requirements
• Embedded computing platforms needing efficient buck conversion
• Telecommunications infrastructure power management

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the lead-free status aligns with RoHS3 compliance requirements for your assembly process. Ensure the 20-TSSOP-EP footprint matches your PCB layout design. Check for any recent Product Change Notifications regarding material or manufacturing site updates before finalizing procurement.

Selection Notes

Select this component when dual isolated or non-isolated outputs are required from a single input source. The wide input range suits applications powered by 12V or 24V nominal buses. Consider the thermal performance of the exposed pad for high-current loads. Verify that the external component selection supports the desired switching frequency and output ripple specifications.

Part Context

This part belongs to the LT3501 family of dual synchronous buck converters. It shares functional similarities with other multi-output regulators but distinguishes itself through its specific current rating and input voltage window. The device integrates control logic and power switches into a compact surface-mount package, reducing the overall solution size compared to discrete implementations.

Replacement Considerations

LT3501IFE#TRPBF is documented as a parameter-equivalent substitute.