QTS48T25120-PDA0

DC-DC Converters are devices that convert voltage from one DC level to another. The QTS48T25120-PDA0 is a DC-DC converter, designed to provide a precisely regulated output voltage of 48 V DC from a wide input voltage range. It is based on a synchronous rectified buck topology and can deliver up to 25A of current. It is ideally suited for a range of applications including data systems, Ethernet switches, industrial, and Telecom/Networking.

Application Field

The QTS48T25120-PDA0 DC-DC converter can be used in a variety of applications from data systems, Ethernet switches, industrial, and Telecom/Networking. It provides high efficiency and low standby power requirements. It is designed to deliver a precise output voltage of 48 V DC with an input voltage range of 18 V DC–36 V DC. The full load efficiency is up to 95%. It is also suitable for a wide temperature range from–40°C to +100°C. The device is protected against overvoltage, short circuit, and over temperature.

Working Principle

The QTS48T25120-PDA0 DC-DC converter is based on a synchronous rectified buck topology. It uses a hysteretic control loop to regulate the output voltage while providing excellent line and load regulation. The voltage conversion is done by switching a power MOSFET, which is driven by a pulse width modulation (PWM) controller. The device is also equipped with an Intelligent Protection circuit, which provides overvoltage, short-circuit, and over-temperature protection.

The device also features an input voltage ramp-up circuit which gradually increases the output voltage during start-up for power saving and minimum time delay. There is also a soft-start circuit that limits the inrush current to protect the load. For enhanced reliability the device features a built-in temperature sensor which allows the device to adjust the maximum operating temperature as per environment.

Conclusion

The QTS48T25120-PDA0 DC-DC converter is a reliable and versatile device which can be used for a variety of applications ranging from data systems to Ethernet switches, industrial and telecom/networking. It provides high efficiency and low standby power requirements which makes it an ideal choice for various power systems. The device is also protected against overvoltage, short circuit, and over temperature with various protection mechanisms. With its excellent line and load regulations, the device provides superior performance in various power systems.