0722BG

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Introduction - DC DC Converters

DC DC converters are electronic components that convert direct current (DC) from one voltage level to another. They are also commonly known as voltage regulators, and can be used to step down the output voltage or step up the input voltage if required. Generally, they are used to provide the necessary power for electronic circuits. In some cases, they are also used to provide the necessary voltage and current for battery charging.

0722BG & Its Application Field and Working Principle

Features & Application Field

The 0722BG DC/DC converter is based on a high-efficiency synchronous Buck topology technology. It offers a wide input voltage range of 3.3 V to 60V and can provide up to 7A of output current. The conversion efficiency of up to 97% enables the generation of very little heat. It supports a wide set of output voltages such as 0.8V, 1V, 1.5V, 2V, 2.5V, 3.3V, 5V, 12V and 24V. It is very compact with a footprint of only 4.1mm x 3.1mm.

Due to its wide application range, the 0722BG is suitable for use in a wide range of applications, including automotive, communication, industrial, medical and consumer electronics. It is also suitable for smart devices such as smartphones, tablets, LED lighting screens, and embedded systems.

Working Principle

The working principle of the 0722BG DC/DC converter is based on a synchronous Buck topology. The topology gets its name from the “Buck” that occurs when input voltage drops, and the “Sync” that indicates the synchronous rectifier. The synchronous rectifier uses a low voltage power transistor as the switch, which can provide high efficiency. It also uses a pair of high and low side control gates to control the conduction of the transistor as well as the current flow.

The input voltage is first rectified and filtered, and then directed to the input capacitor of the converter. It is then divided into two paths; one path is directly applied to the high-side MOSFETs, and the other path is directed to the low-side MOSFETs. The two MOSFETs are switched on and off in a synchronous manner, and allow only a certain amount of current to pass through.

The current is then directed to an inductor and is stored in the form of magnetic field energy. The stored energy in the inductor is then directed to the output filter and capacitor which smooths out the current and provides a steady DC voltage output. The output voltage is determined by the duty cycle of the MOSFETs which is controlled by an internal voltage reference. This enables the 0722BG to provide a wide input voltage range and a wide set of output voltages.

Conclusion

The 0722BG DC/DC converter is an efficient and reliable device that can provide a wide input voltage range and a wide set of output voltages. It is suitable for use in a wide range of applications, including automotive, communication, industrial, medical and consumer electronics. Its working principle is based on a synchronous Buck topology which is based on the regulation of the duty cycle of the MOSFETs. Its high efficiency and compact size make it an ideal choice for a variety of applications requiring DC to DC conversion.

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