LTC3728EG#TRPBF

DC DC Switching Controllers Overview

The LTC3728EG#TRPBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with a fixed 550kHz switching frequency and supports input voltages up to 15V. The device provides two independent outputs, capable of delivering up to 25A per channel. Key electrical specifications include a maximum duty cycle of 0.994 and a supply voltage range of 4.5V to 28V. It features low static current consumption of 20µA and operates within a temperature range of -40°C to +85°C. The component is housed in an SSOP-28 package.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture for independent synchronous buck regulation
• Fixed 550kHz switching frequency for optimized passive component size
• High efficiency operation via integrated synchronous rectifier control
• Comprehensive protection including soft start and shutdown capabilities

DC DC Switching Controllers Applications

• Industrial distributed power systems
• Telecommunications infrastructure power supplies
• Point-of-load regulation for high-current digital loads
• Battery-powered equipment requiring efficient step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with external MOSFETs and inductors for the target current rating. Confirm availability status through authorized distributors as supply conditions may vary. Cross-reference pinouts with the latest datasheet revision to prevent integration errors during PCB design.

DC DC Switching Controllers Selection Notes

Select this controller when dual isolated or non-isolated outputs are required from a single input source. The fixed 550kHz frequency simplifies filter design compared to adjustable frequency variants. Consider the SSOP-28 package constraints for thermal management and board space. Evaluate the 15V input limit against system rail variations to ensure stable operation under all load conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC3728 family of dual synchronous buck controllers. It shares functional similarities with other members like the LTC3728EUH but differs in packaging and industrial temperature ratings. The EG suffix typically denotes a specific package variant and performance grade within the Analog Devices portfolio, designed for robust industrial applications.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other LTC3728 variants such as LTC3728EUH#TRPBF or LTC3728LCUH#TRPBF, provided pinout and thermal requirements match. Verify that alternative packages support the same current handling and switching frequency specifications without redesigning the power stage.