LTC3895EFE

DC DC Switching Controllers Overview

The LTC3895EFE is a high-performance step-down switching regulator DC/DC controller designed to drive an all N-channel synchronous power MOSFET stage. It supports input voltages up to 140V and features a constant frequency current mode architecture with a phase-lockable switching frequency of up to 850kHz. The device operates within a temperature range of -40°C to +125°C and utilizes a TSSOP-EP-38 package. It includes shutdown functionality and offers low quiescent current operation.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFET stages for high efficiency
• Supports input voltages up to 140V with integrated surge protection capabilities
• Features constant frequency current mode architecture with phase-lockable frequency

DC DC Switching Controllers Applications

• High voltage step-down conversion from 60V to 5V
• High voltage step-down conversion from 140V to 24V
• High voltage step-down conversion from 140V to 3.3V

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix matches the required package and temperature grade. Request official datasheets and application notes to validate electrical characteristics against design requirements before integration.

DC DC Switching Controllers Selection Notes

Select this controller when driving external N-channel MOSFETs in high-voltage buck applications requiring up to 140V input. Ensure the external components support the desired output current and voltage levels. Consider thermal management due to the operating temperature range and power dissipation in the synchronous rectifier configuration.

DC DC Switching Controllers Part Context

Part of the LTC3895 family of high-voltage synchronous buck controllers. Designed for industrial and automotive applications requiring robust voltage regulation from high-voltage sources. Complements other PMIC solutions by providing flexible control over external power stages.

DC DC Switching Controllers Replacement Considerations

LT3845EFE#PBF: Lower voltage input (60V max), different package (HTSSOP-16). LTC3895IFE#PBF: Similar performance, verify pin compatibility and specific suffix variations.