LT3510IFE#PBF

Overview

The LT3510IFE#PBF is a dual-output synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.3 V to 25 V and provides two adjustable output channels, each capable of delivering up to 2 A of current. The device integrates high-side and low-side N-channel power switches within a thermally enhanced 20-lead TSSOP package. It supports a programmable switching frequency ranging from 250 kHz to 1.5 MHz, allowing for optimization between efficiency and external component size. The IC features a shutdown mode that reduces quiescent current to 3.5 mA, ensuring minimal power consumption during standby operations.

Feature Summary

• Integrates dual independent synchronous buck converters in a single compact package
• Supports wide input voltage range suitable for various bus architectures
• Features programmable switching frequency for design flexibility
• Includes thermal shutdown and overcurrent protection mechanisms

Applications

• Point-of-load regulation for industrial equipment
• Power distribution networks in telecommunications infrastructure
• Voltage conversion for embedded computing systems
• Battery-powered devices requiring efficient dual-rail supply generation

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the package type matches the 20-TSSOP footprint requirements. Check for any recent Product Change Notices regarding material or manufacturing site updates. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when dual isolated or non-isolated outputs are required from a single input source. Consider the 2 A per channel limit against peak load demands. Evaluate the thermal performance in the TSSOP package under maximum load conditions. Compare the 250 kHz to 1.5 MHz frequency range against EMI constraints and inductor size requirements.

Part Context

This part belongs to the LT3510 family of dual synchronous buck regulators. It shares architectural similarities with other LT35xx series devices but is distinct in its dual-channel configuration. Unlike single-output variants, it offers integrated control for two independent rails, reducing board space compared to using two separate controllers.

Replacement Considerations

LT3510EFE#PBF is a documented equivalent variant within the same product line.