VI-BWF-CY-F1

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DC-DC converters are voltage or current regulators for converting direct current from one voltage to another. They are used in a variety of applications, such as automotive and robotics, for providing a steady supply voltage for the system. The VI-BWF-CY-F1 DC-DC converter belongs to a group of high-power, high-efficiency point-of-load (PoL) converters that offer regulated output voltages and significantly reduce system thermal losses.

The device is a two-stage synchronous buck converter offering two parallel outputs of 48V to 12V. It is based on the latest 28nm process technology, providing higher efficiency, higher power density, and improved thermal performance. The device includes all necessary features such as input voltage monitoring, output voltage regulation, over-current protection, and soft-start. The VI-BWF-CY-F1 is capable of delivering up to 20A load current on each output.

In operation, the device is switched on in the first stage by connecting the two switches, S1 and S2, in parallel while the output voltage is regulated by the current source to offer constant output power. Then, in the second stage, the power is transferred to the desired output voltage. The device operates at a fixed output voltage depending on the output current that is specified using the external resistor. The VI-BWF-CY-F1 is easily controlled using external voltage signals, allowing for quick dynamic load adjustments.

The efficient operation of the device is attributed to its high-switching frequency of 500kHz. This facilitates quicker current transfer in the input and output stages by allowing the device to remain in operating mode for a shorter duration. Additionally, the use of an adjustable on-time feature ensures that the device can achieve Efficiency-Curve commensurate with the application’s needs. This realizes significant energy savings during power conversion.

The VI-BWF-CY-F1 converter is an ideal solution for applications requiring multiple output voltage levels and high current ratings. It is suitable for powering ASICs, high-end processors, FPGAs, motor drives, power supplies, and other high-power applications. The device is also well-suited for use in power-sensitive applications where high efficiency is paramount.

The excellent combination of power density, efficiency, and reliability makes the VI-BWF-CY-F1 an attractive choice for a broad range of applications. The device is available in an MO-254 package, making it compatible with a variety of designs and applications.

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