QSB7524S05

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DC-DC converters are electronic devices used to efficiently convert direct current (DC) from one voltage level to another. They are often used to adjust the voltage level of an input voltage to match the voltage level of a device that requires a certain voltage or current level for operation. The QSB7524S05 DC/DC converter is a highly efficient two-switch forward converter with synchronous rectification designed for high-power conversion applications such as servers, datacenter, storage systems, networking and telecom equipment, as well as industrial, consumer and automotive applications.

The QSB7524S05 DC/DC converter is designed to provide superior efficiency and power density with a wide input voltage range of 12V to 48V and an adjustable output voltage from 0.6V to 3.3V. It has a wide junction temperature of -40°C to +125°C which makes it suitable for a variety of applications. The high-frequency switching nature of the QSB7524S05 DC/DC converter allows for a small form factor of less than 5mm square and an industry-leading power density of 1.95W/cm3.

The operating principle of the QSB7524S05 is based on non-inverting Buck converter topology. The input voltage is first stepped down by a high-frequency transformer to a lower voltage. This is then regulated by an internal voltage-error amplifier connected to a control loop. This voltage-error amplifier then communicates with the internal high-side and low-side MOSFET drivers to provide an adjustable output voltage by controlling the switching frequency which is based on the difference between the set-point voltage and the actual output voltage.

The synchronous rectification reduces the voltage stress on the switching MOSFETs and improves the overall efficiency of the converter. It also allows for very low output voltage ripple and noise. Additionally, the QSB7524S05 also includes a number of protection features such as over-voltage, under-voltage, current-limit and thermal shutdown protection to ensure reliability. These features make the QSB7524S05 DC/DC converter a great choice for applications requiring high power conversion efficiency, small size, and robust protection features.

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