LTC3728LIGN#TRPBF

DC DC Switching Controllers Overview

The LTC3728LIGN#TRPBF is a dual high-performance step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 30V and supports a switching frequency of 550kHz. The device provides two independent outputs, capable of delivering up to 25A per channel depending on thermal conditions. It utilizes a constant frequency current mode architecture for precise regulation. The component is housed in a 28-lead SSOP package and is rated for operation between -40°C and +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel synchronous buck controller architecture driving N-channel MOSFETs
• Constant frequency current mode control for stable loop performance
• Integrated soft-start and power-good signal monitoring capabilities

DC DC Switching Controllers Applications

• Point-of-load regulation for industrial equipment
• Power distribution systems in telecommunications infrastructure
• Embedded computing platforms requiring multi-rail supply sequencing

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with external passive components for the intended switching frequency. Confirm availability status through authorized distributors as supply constraints may apply.

DC DC Switching Controllers Selection Notes

Select this controller when dual isolated or non-isolated low-voltage rails are required from a higher bus voltage. Evaluate thermal management requirements for the SSOP package at maximum load currents. Compare against QFN variants if higher pin counts or different thermal dissipation characteristics are needed for the application.

DC DC Switching Controllers Part Context

This component belongs to the LTC3728L family of dual synchronous step-down controllers. It shares architectural similarities with other members like the LTC3728EUH but differs in packaging and specific electrical ratings. The L-series typically denotes automotive-grade qualification or specific temperature ranges within the broader product line.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3728EUH#TRPBF and LTC3728LCUH#TRPBF. Verify pinout compatibility and ensure the replacement part meets the same input voltage and current requirements.