LTC3854IMSE#PBF

DC DC Switching Controllers Overview

The LTC3854IMSE#PBF 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 supports output voltages from 800 mV to 5.5 V. The device features a fixed switching frequency of 400 kHz and draws a quiescent current of 15 uA. It is housed in a 12-lead MSOP package with exposed pad, designed for surface mount installation. The component functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high efficiency
• Wide input voltage capability up to 38 V
• Low quiescent current operation
• Integrated soft-start functionality

DC DC Switching Controllers Applications

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

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the IMSE variant meets industrial temperature requirements. Check manufacturer documentation for any recent product change notifications affecting pinout or electrical characteristics before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring wide input voltage ranges and compact footprints. Ensure external MOSFETs support the required current levels as the IC drives gates only. Verify that the desired output voltage falls within the 800 mV to 5.5 V operational window defined by the datasheet.

DC DC Switching Controllers Part Context

This component belongs to the LTC3854 family of synchronous buck controllers. It shares architectural similarities with other members like the LTC3854EDDB but differs in package type and temperature rating. The series is designed for applications demanding small solution size and efficient power conversion from higher bus voltages.

DC DC Switching Controllers Replacement Considerations

LTC3854EDDB#TRMPBF offers similar electrical performance in a DDB package. LTC3854EMSE#PBF provides equivalent functionality in an MSOP package with commercial temperature range.