LTC3891IFE#PBF

DC DC Switching Controllers Overview

The LTC3891IFE#PBF is a synchronous step-down controller from Analog Devices, designed for high-efficiency power conversion. It operates with an input voltage range of 4V to 60V and supports output voltages from 800mV to 24V. The device features a programmable switching frequency between 75kHz and 750kHz, enabling optimization for specific design requirements. It delivers up to 15A of output current with a typical quiescent current of 50µA. The component is housed in a 20-lead TSSOP-EP package and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports wide input voltage ranges suitable for industrial and automotive applications
• Features low quiescent current to extend battery life in portable systems
• Includes integrated soft-start and tracking capabilities for controlled startup sequences

DC DC Switching Controllers Applications

• Distributed DC power systems
• Battery-operated digital devices
• Automotive always-on systems

DC DC Switching Controllers Procurement Notes

Verify the exact suffix against official manufacturer documentation to ensure correct thermal grade and packaging specifications. Confirm availability status through authorized distributors as supply levels may vary. Cross-reference the datasheet revision date to ensure compatibility with current design standards and regulatory requirements.

DC DC Switching Controllers Selection Notes

Select this model when a single-output synchronous buck controller is required with a maximum input voltage of 60V. The adjustable frequency range allows designers to balance efficiency and component size. Ensure the external MOSFET selection matches the 15A current capability and thermal constraints of the target application environment.

DC DC Switching Controllers Part Context

This component belongs to the LTC3891 family of synchronous step-down controllers. It shares architectural similarities with other members like the LTC3891EFE but differs in switching frequency specifications. The series is characterized by its ability to drive all N-channel synchronous power MOSFET stages efficiently.

DC DC Switching Controllers Replacement Considerations

LTC3891EFE#PBF serves as a functional alternative within the same family, offering similar control features but with a fixed higher switching frequency.