VI-B44-EW-B1

DC-DC converters are an important class of power electronic circuits whose function is to convert electrical energy from a source of direct current (DC) to a load with either the same DC voltage but different currents, or with both different voltages and currents.

The VI-B44-EW-B1 is one such DC-DC converter which is capable of operating from 15V to 36V in input with an output voltage of 20V. It is a highly efficient switching-mode power converter utilizing interleaved technology with peak current mode control. It also contains a power factor correction (PFC) circuit and comes in a 32-pin QFN package, measuring 5x6mm. It has an adjustable output voltage range and a continuous current capacity of 4A.

Its operating principle is simple; when the input voltage exceeds the output, as indicated by the connected protection circuits, the VI-B44-EW-B1 switches on an internal high side MOSFET, which connects the input voltage source to the output terminals. This current return to the input terminal is then regulated by the converter’s internal PFC circuit. When the output voltage is less than that of the input, an internal low side switch is opened. This draws current from the output terminals and keeps the output voltage controlled. The constant operating frequency of this converter combined with a low harmonic ripple yield high efficiency levels and a wide input voltage range.

The VI-B44-EW-B1 DC-DC converter is an ideal choice for a variety of power electronic applications, such as industrial equipment, automotive systems, and communications systems. Its low noise characteristics and high efficiency make it a good solution for applications that require low heat dissipation. In addition, the wide input voltage range and compact size make it suitable for space constrained environments. With its high power density and low noise operation, the VI-B44-EW-B1 offers an optimal solution for those looking for robust power delivery in a small form factor.