The LT3579IUFD-1#TRPBF is a high-performance, dual-channel, fixed frequency, step-up DC/DC converter from Analog Devices Inc., designed to cater to a wide range of power supply applications. This versatile component is capable of generating positive and negative outputs from a single input rail, making it an ideal choice for applications requiring dual output voltages such as bias supplies and LED drivers.

Key Features

• Wide Input Voltage Range: The device supports an input voltage range of 2.5V to 16V, accommodating various power sources including single lithium-ion batteries, multiple alkaline/NiMH cells, and regulated 5V and 12V power rails.
• Adjustable Switching Frequency: The switching frequency is adjustable via a single resistor or can be synchronized to an external clock, ranging from 200kHz to 2.5MHz, allowing flexibility in optimizing efficiency and component size.
• Integrated Boost and Catch Diodes: Integrated power diodes simplify the design and reduce external component count, while also improving overall system reliability.
• Independent Shutdown and Soft-Start: Each channel can be independently shut down, and soft-start capability limits inrush current during startup.
• Robust Protection Features: The device includes features such as overvoltage protection, overtemperature protection, and a current limit function, ensuring reliable operation under various conditions.

Applications

Thanks to its dual output capability and wide range of features, the LT3579IUFD-1#TRPBF is suitable for a diverse array of applications, including:

• Industrial and automotive displays
• Medical diagnostic equipment
• Portable instruments
• Telecommunications power supplies
• LED backlighting and drivers

Product Packaging

The LT3579IUFD-1#TRPBF is offered in a compact QFN-28 package, making it well-suited for space-constrained applications. It is also available in tape and reel packaging, denoted by the "#TRPBF" suffix, which facilitates automated manufacturing processes.

Conclusion

With its dual-channel design, wide input voltage range, and comprehensive protection features, the LT3579IUFD-1#TRPBF from Analog Devices Inc. is a robust and flexible solution for powering a variety of applications requiring both positive and negative outputs from a single input source.