L5975ADTR

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The L5975ADTR DC/DC switching regulator is the first fully integrated power solution for low power applications such as low power processor cores. It integrates many of the components required to regulate and protect the power supply into a single package, which offers improved performance, easier design, reduced heat dissipation and higher reliability. This integrated solution helps designers to save time and cost when developing their own power solutions.

Application Field

The L5975ADTR DC/DC switching regulator is an ideal choice for low power applications. It can provide output voltages up to 3.6V, making it suitable for micro components and low power processor cores. It can also provide up to 5A of output current, making it suitable for applications such as LCD and touch screen displays, micro-USB connectors, embedded radio transceivers, smart metering and low current motors.

The L5975ADTR is also a great power solution for industrial applications. It can provide output voltages up to 12V, making it suitable for controlling motors and valves in industrial equipment. It can also provide up to 3A of output current, making it suitable for powering low current embedded systems, such as sensors and actuators.

As an ultra-low power solution, the L5975ADTR is an attractive choice for battery-powered applications, such as portable medical devices and wearable devices. It can provide up to 250mA of output current, making it suitable for powering small devices with low power requirements.

Working Principle

The L5975ADTR DC/DC switching regulator works by converting an input voltage into an output voltage of desired value, with very high efficiency. This is achieved by using a switching topology and utilizing a high frequency transformer that pulses the current through it.

The switching is controlled by an integrated switching controller which carefully regulates the current and output voltage. The current is provided by a low-noise current mode control loop which allows excellent dynamic performance with very wide bandwidth.

The L5975ADTR also integrates an internal power-on reset circuit which allows the system to ramp up safely and without unwanted overshoot or transients. Additionally, the device is capable of using multiple operation modes which can yield higher efficiency or higher step-up ratio operation which can be used to deliver two different output voltages from a single voltage source.

The L5975ADTR also features built-in protection features, such as over-voltage, over-current and thermal protection, which allows for safe and reliable operation of the system.

Conclusion

The L5975ADTR is an ideal power solution for low power applications, such as small micro-controllers, embedded radio transceivers, LCD and touch screen displays, smart metering and low current motors. It is an ultra-low power solution that provides up to 5A of output current and can be used in industrial applications. Additionally, the device integrates many of the components required to regulate and protect the power supply into a single package, which offers improved performance, easier design, reduced heat dissipation and higher reliability.

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