ACT5101QI102-T

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-QFN (4x4)

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ACT5101QI102-T: DC DC Switching Regulator Application and Working Principle

A DC to DC converter is an electronic circuit that transforms an input voltage into a different voltage output. DC - DC converters are classified as either linear or switching regulators. The ACT5101QI102-T is a DC to DC switching regulator that has a wide range of applications and operating principles.

Applications of ACT5101QI102-T

The ACT5101QI102-T DC to DC switching regulator is used in various applications that require supplying power to multiple loads. It can be utilized in many regulated power supplies, automotive systems, and industrial applications. With it, users can power electronic devices such as LED lights, microcontrollers, and other digital electronics. Moreover, this device features a wide range of operation temperatures, suitable for applications in a variety of different temperature environments.

Working Principle of ACT5101QI102-T

The ACT5101QI102-T DC to DC switching regulator can effectively step-down an input voltage to a desired output level. The device is based on a synchronous buck topology and utilizes a control loop for smooth and efficient voltage regulation. It is composed of an inductor, a capacitor, a control switch and a series regulator. During the power management process, the inductor acts as an energy storage element and charges up when the control switch is closed, and discharges current when the switch is open. As a result, an output voltage that has been decreased is supplied to the load.

Switching Frequency and Control of ACT5101QI102-T

This DC - DC switching regulator supports an adjustable switching frequency range of 200kHz to 1.6MHz and integrates a variety of protections including under voltage lockout (UVLO), over current protection and thermal shutdown. Furthermore, its 2.9V to 5.5V input voltage can be externally adjusted, making it suitable for different input sources. Additionally, the ACT5101QI102-T utilizes a sophisticated feedback loop to maintain a stable output voltage at the desired level and compensate for variations in the output load current.

Conclusion

The ACT5101QI102-T is a great DC - DC switcher that is ideal for applications requiring lower voltage outputs. Its wide adjustable switching frequency range and efficient feedback loop make it extremely flexible and suitable for an extensive array of regulated power supplies. Its integrated protection circuits provide reliable operation, allowing it to safely and effectively handle a variety of low voltage loads.

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