LTC3728LIUH-1#TRPBF

DC DC Switching Controllers Overview

The LTC3728LIUH-1#TRPBF is a dual high-performance step-down switching regulator controller from Analog Devices. It drives all N-channel synchronous power MOSFET stages in a buck topology. The device supports an input voltage range of 4.5V to 28V and provides two independent outputs with current capabilities up to 25A per channel. It operates at a constant frequency current mode architecture with a switchable frequency up to 550kHz. The component is housed in a 32-pin QFN package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual output capability for independent regulation
• External frequency synchronization support
• Drives all N-channel synchronous power MOSFETs
• Constant frequency current mode architecture

DC DC Switching Controllers Applications

• Industrial point-of-load regulation
• Telecommunications power systems
• Distributed power architectures

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the LIUH grade matches required operating temperature ranges. Cross-reference the manufacturer datasheet for exact pinout and thermal pad requirements. Ensure compatibility with external MOSFET selection for the intended current load.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring dual isolated or non-isolated buck conversions. Verify that the external components support the 550kHz maximum switching frequency. Check input voltage stability against the 4.5V minimum threshold. Evaluate thermal dissipation needs for the QFN package under full load conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC3728L family, designed for high-efficiency power management. It serves as a controller rather than an integrated switch, allowing flexibility in power stage design. The series targets robust industrial and telecom environments requiring precise voltage regulation and dynamic response.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes within the LTC3728 series such as LTC3728EUH-1#TRPBF or LTC3728LEGN-1#PBF. Verify pin compatibility and electrical specifications before substitution. Consult official documentation for any functional differences between variants.