CS5172ED8

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Today, switching regulators are very popular for medium to high power applications, because compared to linear regulators, switching regulators have much higher efficiency, lighter weight, and higher current ratings. The CS5172ED8 is a popular alternative for low power applications due to its low cost, low quiescent current, and wide input voltage range. This article will cover the application field and working principle of the CS5172ED8.

Application Field

The CS5172ED8 can be used in a variety of applications, including automotive, industrial, telecom, and consumer electronics. In automotive applications, the device is used to provide power for numerous sensors, ECUs, and other components. It has also been used for automotive radio and display modules. In industrial applications, it is used to provide power for low voltage microcontrollers and other logic circuitry. In telecom applications, it is ideal for powering wireless transceivers and cellular base stations, while in consumer electronics it is found in televisions, DVD players, set-top boxes, and other AC mains plug adapters.

Working Principle

The CS5172ED8 is an integrated DC-DC converter with a design based on the resonant switch and integrated MOSFET topology. This allows it to achieve an extremely high efficiency even at light loads. The device works by switching one MOSFET on while the other is turned off. As the current flows through the inductor in the circuit, a voltage is built up that is proportional to the rate of current change. This voltage is rectified by a Schottky diode and used to turn on the other MOSFET and switch the load. This process is repeated at a frequency of up to 1.5 MHz and allows for the transfer of energy from the input voltage to the output voltage with minimal power loss.

The device also features a low standby current and is adjustable from 0.25V to 5V. It features an under-voltage lockout (UVLO) and automatic over-voltage protection (OVP) to ensure safe operation. It is also protected against thermal overload, under-voltage, and over-current conditions.

The CS5172ED8 is ideal for a variety of low power applications due to its low cost, low quiescent current, and wide input voltage range. Its high efficiency, light weight, and high current ratings make it an excellent choice for medium to high power applications.

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