LTC7818HUJ#TRPBF

DC DC Switching Controllers Overview

The LTC7818HUJ#TRPBF is a high-performance triple output synchronous DC/DC switching regulator controller from Analog Devices Inc. It drives all N-channel power MOSFET stages and features a constant frequency current mode architecture allowing for a lockable switching frequency up to 3 MHz. The device supports buck, buck-boost, and boost topologies with a maximum duty cycle of 100%. It operates within an input voltage range of 4V to 40V and includes control features such as current limit, enable, frequency control, power good, and soft start. The component is housed in a 40-WFQFN exposed pad package and is rated for operation between -40°C and 125°C TJ.

DC DC Switching Controllers Feature Summary

• Triple output capability driving three independent channels
• Supports buck, buck-boost, and boost topologies
• Lockable switching frequency up to 3 MHz
• Drives all N-channel power MOSFET stages

DC DC Switching Controllers Applications

• Industrial power systems requiring multiple regulated rails
• Automotive electronics applications
• Telecommunications infrastructure power supplies
• Battery-powered equipment with varying input voltages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the H-grade designation meets required temperature and performance specifications for your application environment. Ensure compatibility with the 40-QFN(6x6) footprint during PCB layout. Cross-reference official datasheets for precise electrical characteristics before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring three isolated or non-isolated outputs from a single IC. It is suitable for applications needing flexible topology support including step-up and step-down operations. Consider the 3 MHz frequency option for reduced passive component size. Verify that the external MOSFET selection aligns with the controller's drive capabilities and thermal requirements.

DC DC Switching Controllers Part Context

This component belongs to the LTC7818 family of triple output synchronous controllers. It shares architectural similarities with other high-performance PMICs from Analog Devices but is distinct in its three-channel configuration. The part is designed to replace older multi-controller solutions by integrating three channels into a single compact package, simplifying board space and design complexity.

DC DC Switching Controllers Replacement Considerations

LTC7818IUJ#PBF is a public confirmed substitute offering identical functionality in tube packaging.