LTC3851EMSE#TRPBF

DC DC Switching Controllers Overview

The LTC3851EMSE#TRPBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 38V and supports output voltages down to 0.8V. The device utilizes a constant frequency current mode architecture, allowing for a phase-lockable switching frequency up to 750kHz. It drives all N-channel synchronous power MOSFETs and includes features such as soft start, tracking, and power good indication. The component is housed in a 12-lead MSOP package.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology driving all N-channel MOSFETs
• Phase-lockable switching frequency up to 750kHz
• Integrated soft start and tracking capabilities

DC DC Switching Controllers Applications

• High efficiency synchronous step-down converters
• Industrial distributed power systems
• Point-of-load regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm that the EMSE designation corresponds to the MSOP-12 package variant. Ensure compatibility with required thermal dissipation standards for the selected operating environment before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring wide input voltage ranges and high-frequency operation. Consider the MSOP package size constraints against available PCB real estate. Evaluate external MOSFET selection based on the controller's drive capabilities and the target output current requirements for optimal efficiency.

DC DC Switching Controllers Part Context

This component belongs to the LTC3851 family of synchronous step-down controllers. It shares architectural similarities with other models in the series but differs in package type and temperature grade specifications. The EMSE variant specifically denotes the MSOP package configuration used in space-constrained designs.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3851EGN#TRPBF for QFN package variants or the LTC3851IMSE#TRPBF for industrial temperature grades. Verify pinout compatibility and thermal performance differences when substituting between package types within the same product family.