LTC3854IDDB#TRMPBF

DC DC Switching Controllers Overview

The LTC3854IDDB#TRMPBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5 V to 38 V and provides an adjustable output voltage from 800 mV to 5.5 V. The device supports up to 25 A of output current with a fixed switching frequency of 400 kHz. Key electrical specifications include a quiescent current of 15 uA, load regulation of 0.1%, and an operating supply current of 2 mA. It functions within a temperature range of -40°C to +85°C and utilizes a DFN-8 package.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high-efficiency power conversion
• Wide input voltage capability suitable for various bus architectures
• Integrated current mode control for fast transient response

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial systems
• Power distribution networks for telecom infrastructure
• Embedded computing board power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRMPBF against official Analog Devices documentation to confirm tape-and-reel packaging and moisture sensitivity levels. Ensure the order matches the exact part number as distributors may list similar variants with different thermal or electrical grades. Confirm RoHS compliance status directly from the manufacturer's datasheet before procurement.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring a wide input voltage range up to 38 V and high output currents near 25 A. The 400 kHz switching frequency allows for compact passive component selection compared to lower-frequency alternatives. Verify that the thermal performance of the DFN-8 package meets the application's heat dissipation requirements under maximum load conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC3854 series of synchronous step-down controllers designed for applications demanding small footprints and wide input ranges. It serves as a core power management IC for converting higher bus voltages to lower logic or processor supply rails efficiently.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.