LTC7803EMSE#TRPBF

DC DC Switching Controllers Overview

The LTC7803EMSE#TRPBF is a synchronous step-down controller from Analog Devices Inc., designed for high-efficiency power conversion. It operates with an input voltage range of 4.5V to 40V and supports switching frequencies between 100kHz and 3MHz. The device features a maximum duty cycle of 100% and includes spread spectrum modulation capabilities. It utilizes a 16-lead MSOP package and is rated for junction temperatures from -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates spread spectrum frequency modulation to reduce electromagnetic interference peaks.
• Supports clock synchronization for multi-phase or parallel system applications.
• Enables 100% duty cycle operation for minimal dropout voltage requirements.

DC DC Switching Controllers Applications

• Industrial point-of-load regulation
• Telecommunications power distribution
• Automotive infotainment systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with required thermal management solutions for the MSOP-16 footprint. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this component when a compact synchronous buck solution is required within a 40V input limit. The wide switching frequency range allows optimization for size versus efficiency trade-offs. Verify that the external MOSFET selection aligns with the controller's drive capabilities and the target load current requirements.

DC DC Switching Controllers Part Context

This part belongs to the LTC7803 family of low quiescent current controllers. It shares core architecture with variants like the LTC7803JUD and LTC7803EUD, differing primarily in packaging and industrial temperature ratings. The EMSE designation indicates a specific surface-mount package configuration distinct from QFN options.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other LTC7803 variants such as LTC7803JUD#WTRPBF or LTC7803EUD#TRPBF, provided pinout and thermal characteristics match the design constraints. Cross-family replacements require careful evaluation of control loop stability and driver strength differences.