VI-26P-IV-F2

DC-DC converters are electrical components that help to convert a direct current (DC) voltage into another DC voltage that is suitable for use in many different types of applications. They are commonly used to transfer power from a source voltage to a load voltage while maintaining constant output voltage regardless of load or line variations. The VI-26P-IV-F2 converter is a high performance, multi-phase DC-DC converter from Delphi. It is designed to provide high efficiency and high power density while operating in harsh environments.

Application Field and Working Principle

The VI-26P-IV-F2 converter is designed for use in extreme temperature and challenging environmental conditions, such as aerospace, automotive, and industrial industries. It is a multi-phase, non-isolated, high-efficiency, DC-DC converter capable of providing up to 260 watts of power in a 30 mm x 30 mm x 4 mm package.

The VI-26P-IV-F2 converter is a synchronous buck converter and typically operates in the 100 kHz switching frequency region. It works by rapidly switching the high side device on and off to regulate the input voltage so that the output voltage remains constant. This is done by comparing the feedback voltage to a reference voltage and adjusting the duty cycle accordingly. This ensures a constant output voltage regardless of load or line variations.

The VI-26P-IV-F2 converter offers several features designed to reduce noise, improve system performance and efficiency, and minimize system costs. These features include programmable switching frequency, programmable current limit, adjustable output voltage, remote on/off, input UVLO protection, and thermal shutdown protection.

The VI-26P-IV-F2 converter also includes features designed to improve efficiency, such as integrated rectifier diodes, optional parallel boost switch, integrated direct drive FETs, and integrated inductors. The integrated rectifier diodes reduce losses associated with the rectifier, the optional parallel boost switch improves efficiency in high-to-low ratio step-down applications, and the integrated direct drive FETs reduce efficiency losses due to gate drive and switching. The integrated inductors enable the converter to operate with lower power levels, extending the efficiency of the overall system.

By combining superior design, excellent environmental specifications, advanced features, and reliable performance, the VI-26P-IV-F2 converter is an essential component for any application requiring reliable power in extreme temperature or challenging environments.