LT3840EFE#TRPBF

Overview

The LT3840EFE#TRPBF is a high voltage synchronous step-down switching regulator controller from Analog Devices Inc. It operates from a 2.5V to 60V supply and supports up to 20A output current. The device features an adjustable switching frequency ranging from 50kHz to 1MHz, with a maximum duty cycle of 99%. It is housed in a 28-TSSOP-EP package and functions as a single-output DC-DC controller.

Feature Summary

• High voltage operation capability supporting wide input ranges
• Synchronous rectification for improved efficiency
• Adjustable operating frequency for design flexibility
• Integrated accurate current limit protection

Applications

• Industrial power supplies
• Telecommunications equipment
• Point-of-load regulation

Procurement Notes

Verify the specific suffix and package type against the official datasheet to ensure compatibility with your circuit design. Confirm that the component meets all required electrical specifications for your application environment before procurement.

Selection Notes

Select this controller for applications requiring high input voltages and precise current management. Ensure the external components support the desired switching frequency and output current requirements while maintaining thermal performance within the specified operating temperature range.

Part Context

This component belongs to the LT3840 series of high voltage synchronous buck controllers. It is designed for medium to high power applications where efficiency and wide input voltage ranges are critical. The device integrates essential control functions into a compact package.

Replacement Considerations

Consult the manufacturer's documentation for direct pin-to-pin replacements or functional equivalents. Verify that any substitute part matches the input voltage range, current capacity, and package dimensions of the original component.