LTC3891HUDC#PBF

DC DC Switching Controllers Overview

The LTC3891HUDC#PBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. 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, with a typical quiescent current of 50µA. Designed for high performance, it offers a load regulation of 0.01% and supports up to 15A output current. 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

• Synchronous buck topology with low quiescent current operation
• Programmable switching frequency for optimized design flexibility
• Integrated soft-start and tracking capabilities
• Precision reference with power good indicator

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 specific suffix 'HU' against official documentation to confirm the exact temperature grade and package variant. Ensure compatibility with the required thermal management solutions for the TSSOP-EP-20 package. Cross-reference the manufacturer's latest datasheet to validate pinout assignments and electrical characteristics before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this controller when a wide input voltage range up to 60V is required alongside low standby power consumption. The device is suitable for applications demanding precise output regulation and flexible frequency settings. Consider the thermal performance of the exposed pad package for high-current designs. Evaluate the need for external components based on the desired switching frequency and output capacitance requirements.

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 LTC3891IFE and LTC3891IUDC, differing primarily in temperature rating and package type. The family is designed for high-efficiency power conversion in industrial and automotive environments.

DC DC Switching Controllers Replacement Considerations

LTC3891IFE#PBF and LTC3891IUDC#TRPBF are related parts within the same family. Verify if the specific temperature grade or packaging format of these alternatives meets the design requirements.