LTC3879EMSE#PBF

DC DC Switching Controllers Overview

The LTC3879EMSE#PBF is a synchronous buck switching regulator controller from Analog Devices, designed for high-frequency operation and rapid transient response. It features a constant on-time valley current mode architecture that supports wide input voltage ranges, including very low duty cycle applications. The device operates with an input supply of 4V to 38V and provides a single output phase. Key electrical specifications include a switching frequency of 2 MHz, a maximum operating temperature of +85°C, and a minimum of -40°C. It incorporates shutdown functionality and exhibits a load regulation of -0.05% with an operating supply current of 1.35 mA.

DC DC Switching Controllers Feature Summary

• Constant on-time valley current mode architecture enables wide input range and low duty cycle operation
• Optimized for high switching frequencies and fast transient response
• Synchronous rectifier design eliminates the need for external sense resistors

DC DC Switching Controllers Applications

• Industrial systems requiring efficient power conversion
• Automotive electronics platforms
• Aerospace equipment power management

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required package and temperature grade. Request original manufacturer documentation to validate lot traceability and RoHS compliance status before finalizing acquisition.

DC DC Switching Controllers Selection Notes

Select this controller for designs demanding high efficiency without external current sensing components. Ensure the application requires a 2 MHz switching frequency and operates within the 4V to 38V input range. Verify thermal management capabilities for the MSOP-EP package in high-load scenarios.

DC DC Switching Controllers Part Context

This part belongs to the LTC3879 family of synchronous buck controllers. It is distinct from integrated regulators by providing only the control logic, requiring external MOSFETs and passive components. The EMSE#PBF designation indicates a 16-lead MSOP package with exposed pad and lead-free construction.

DC DC Switching Controllers Replacement Considerations

Direct substitutes are not explicitly confirmed in public documentation. Evaluate alternative Analog Devices buck controllers based on pin compatibility, switching frequency, and input voltage range requirements.