LTC3851AHMSE#TRPBF

DC DC Switching Controllers Overview

The LTC3851AHMSE#TRPBF is a high-performance synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4.5V to 32V and supports adjustable output voltages from 0.8V to 5.5V. The device utilizes a constant frequency current mode architecture with a phase-lockable switching frequency up to 750kHz. Packaged in a 16-lead MSOP EP, it is designed for industrial applications with an operating temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFETs for high efficiency
• Features a constant frequency current mode architecture
• Supports phase-lockable switching frequencies up to 750kHz

DC DC Switching Controllers Applications

• Industrial distributed power systems
• Point-of-load regulation
• Telecommunications infrastructure

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the AHMSE grade corresponds to the required automotive or extended industrial temperature specifications. Ensure the 16-lead MSOP EP footprint matches the target PCB layout constraints before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring precise current mode control and synchronization capabilities. Evaluate thermal performance requirements given the MSOP EP package. Compare against other LTC3851 variants if higher input voltage ranges or different package styles are necessary for the specific application environment.

DC DC Switching Controllers Part Context

This part belongs to the LTC3851 family of synchronous buck controllers. These devices are engineered to replace traditional PWM controllers by enabling the use of low RDS(on) N-channel MOSFETs. The family offers flexibility in frequency selection and synchronization options for multi-phase or parallel configurations.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other LTC3851 variants such as the AIMSE or EMSE series, depending on the required temperature grade and package type. Verify that alternative parts maintain compatibility with the existing N-channel MOSFET gate drive requirements.