QSB20048S05

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DC-DC converters are devices that are used to convert a low voltage DC level to a higher voltage level or vice versa. The QSB20048S05 DC-DC converter belongs to the switch-mode power supply (SMPS) family of DC-DC converters. This type of DC-DC converter is used in a wide variety of applications, such as electric vehicles, telecom and IT equipment, renewable energy systems, and consumer electronics.

The QSB20048S05 DC-DC converter offers a 4-25V input voltage operating range and a 5V output voltage operating range. It is designed to operate at a constant frequency and features an adjustable switching frequency range of 250kHz-2.5MHz. The device is rated for an output current of up to 8A and has a high efficiency of 85%. It also has an over-voltage, under-voltage, over-temperature, and short-circuit protection.

The working principle of the QSB20048S05 DC-DC converter is based on the switching of two transistors, which alternately turn on and off. When the input voltage is higher than the output voltage, the transistor on the high side is turned on and the transistor on the low side is turned off. This causes the DC source voltage to be connected to the output load. When the input voltage is lower than the output voltage, the transistor on the high side is turned off and the transistor on the low side is turned on. This causes the output voltage to be connected to the output load, creating a DC-DC conversion.

The QSB20048S05 DC-DC converter is suitable for a wide range of applications, including automotive systems, renewable energy systems, consumer electronics, and other high-power requirements. Its high efficiency and wide input voltage range make it an ideal choice for all of these applications. Additionally, its over-voltage, under-voltage, over-temperature, and short-circuit protection features ensure that the system is protected from any unexpected events.

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