LTC3851IMSE#TRPBF

DC DC Switching Controllers Overview

The LTC3851IMSE#TRPBF is a high-performance synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 38V and supports output voltages from 800mV to 5.5V. The device utilizes a constant frequency current mode architecture with a phase-lockable switching frequency between 250kHz and 750kHz. It features a 16-SSOP package, operates at temperatures from -40°C to +125°C, and includes control characteristics such as current limiting, enable, frequency control, soft start, and tracking.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFET stages for high efficiency
• Constant frequency current mode architecture allows phase-lockable operation up to 750kHz
• Integrated control features include current limiting, soft start, and tracking capabilities

DC DC Switching Controllers Applications

• Distributed power systems in industrial equipment
• Point-of-load regulation for processors and FPGAs
• Telecommunications infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the IMSE designation corresponds to the industrial temperature grade (-40°C to +125°C) and SSOP-16 package. Ensure compatibility with external MOSFET selection for the required load current. Check for RoHS compliance documentation if required by your manufacturing standards.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring precise voltage regulation and high efficiency across a wide input voltage range. The phase-lockable feature is suitable for systems requiring multiple synchronized converters. Consider the thermal performance of the SSOP-16 package relative to the expected power dissipation. Verify that the external components support the selected switching frequency and output current requirements.

DC DC Switching Controllers Part Context

This part belongs to the LTC3851 family of synchronous buck controllers designed for high-density power conversion. The family offers various package options and temperature grades to suit different design constraints. The controller integrates essential protection features while maintaining simplicity in external component count. It is engineered for applications demanding robust performance and reliability in compact form factors.

DC DC Switching Controllers Replacement Considerations

Direct replacements include other parts within the LTC3851 family, such as the LTC3851EMSE#TRPBF or LTC3851AIGN#TRPBF, depending on package and temperature grade requirements. Verify pinout compatibility and electrical specifications before substitution. Consult official datasheets for detailed comparison of operating conditions and control features.