LTC7811IUJ#PBF

DC DC Switching Controllers Overview

The LTC7811IUJ#PBF is a low IQ triple output buck-buck-boost DC/DC switching controller manufactured by Analog Devices Inc. It features synchronous rectification and supports three positive outputs with a maximum duty cycle of 100%. The device operates within a supply voltage range of 1V to 40V and offers a programmable switching frequency from 100kHz to 3MHz. It is housed in a 40-WFQFN (6x6) package with an exposed pad, designed for surface mount installation. The component is qualified to AEC-Q100 standards for automotive applications and functions reliably across a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Supports triple output configurations using buck or buck-boost topologies
• Includes integrated synchronous rectification for enhanced efficiency
• Provides comprehensive control features including current limit, enable, frequency control, power good indication, and soft start

DC DC Switching Controllers Applications

• Automotive power systems requiring multi-rail regulation
• Industrial power supplies with diverse voltage requirements
• Telecommunications infrastructure equipment

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required thermal performance and automotive qualification standards. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring three independent regulated outputs from a single input source. Consider the wide input voltage range and high-frequency operation capabilities for compact designs. Evaluate the thermal requirements of the 40-QFN package and ensure adequate PCB layout for heat dissipation and signal integrity in high-density applications.

DC DC Switching Controllers Part Context

This component belongs to the LTC7811 series of power management ICs from Analog Devices Inc. It is categorized under DC/DC Switching Controllers within the PMIC family. The device is specifically engineered for applications demanding multiple isolated or non-isolated rails with high efficiency and low quiescent current characteristics suitable for modern electronic systems.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.