LTC3895EFE#PBF

DC DC Switching Controllers Overview

The LTC3895EFE#PBF is a high-performance step-down switching regulator DC/DC controller designed to drive all N-channel synchronous power MOSFET stages. It supports input voltages up to 140V and provides an adjustable output voltage range from 800mV to 60V with a maximum output current of 10A. The device utilizes a constant frequency current mode architecture allowing a phase-lockable switching frequency of up to 900kHz. It operates within a temperature range of -40°C to +125°C and features a typical quiescent current of 40µA.

DC DC Switching Controllers Feature Summary

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

DC DC Switching Controllers Applications

• High voltage to low voltage step-down conversion systems
• Industrial power supplies requiring wide input ranges
• Automotive always-on systems with high voltage inputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging as per Analog Devices standards. Confirm the TSSOP-EP-38 package type matches your PCB footprint requirements. Ensure the design accounts for the 140V absolute maximum rating and thermal dissipation needs for the 10A output capability. Cross-reference the datasheet for any recent pinout or electrical specification updates before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when a buck controller must handle input voltages significantly higher than standard 60V parts, specifically up to 140V. It is suitable for designs requiring precise current mode control and synchronization via phase-lockable frequency. Consider the 40µA quiescent current for standby efficiency requirements. Ensure external MOSFETs are rated for the high voltage and current demands of the application.

DC DC Switching Controllers Part Context

This part belongs to the LTC3895 family of high-voltage synchronous buck controllers from Analog Devices. It is distinct from lower voltage variants like the LT3845 or dual-output models like the LTC3890. The EFE#PBF designation specifies the TSSOP-EP-38 package and lead-free construction. It is often evaluated using the DC2117A demonstration board.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitutes include other Analog Devices high-voltage buck controllers such as the LTC3895IFE#PBF for different package options. Verify compatibility with existing gate drive requirements and control loop compensation when substituting.