MP5017GD-Z

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Management Integrated Circuits (PMICs) have been an integral part of new innovations in electronics for more than a decade. PMICs are integral for managing voltage, power, thermal and battery related functions. By controlling the various aspects of power on the board, PMICs can provide designers with more flexibility in designing the electrical components of their product.

Among PMICs, power distribution switches, load drivers, and high speed low-voltage devices are very important. In particular, the MP5017GD-Z is a highly efficient power management device that can be used in a wide range of applications. The MP5017GD-Z is a monolithic buck regulator specifically designed for single-cell lithium-ion/polymer battery-powered applications.

Application Fields

The MP5017GD-Z can be used for a variety of specific application fields. For example, the MP5017GD-Z can be used in portable applications such as cellular phones, digital cameras, and other portable consumer electronics. Additionally, the MP5017GD-Z can be used in industrial applications, such as industrial control, measuring equipment and motor controls.

In portable applications, the MP5017GD-Z can provide a stable output voltage with a high power efficiency in a small form factor. The device helps to maximize the battery life in portable applications by regulating the output voltage and current. Additionally, the device’s current-mode control architecture minimizes the size of the output filter components which can help to reduce external component count and overall solution size.

In industrial applications, the device can provide a stable output voltage with a fast transient response to meet the industrial need for precise voltage control. The device also offers a convenient low-power shutdown mode for power savings by reducing the quiescent current consumption.

Working Principle

The MP5017GD-Z is a buck switching regulator that exploits a current-mode control architecture to maintain the regulated voltage. The main components of the device are the control logic, the high- and low-side power switches, and the feedback and compensator circuits.

The device is switched on and off using logic signals that control the high- and low-side switches. During each cycle, the high-side switch is closed and the current in inductor increases. The inductor current is monitored and compared to the reference voltage. Once the reference voltage is reached, the low-side switch is closed and the inductor current is released to the output, thereby providing a regulated output voltage.

The output voltage is monitored by the feedback and compensator circuits. The feedback voltage is compared to the reference voltage and the error is fed back to the control logic to adjust the on/off timing of the high- and low-side switches for a constant output voltage. In addition, the device is programmed such that the output voltage will never exceed the input voltage and the device will automatically limit the output current to protect the device from overload.

Finally, the MP5017GD-Z includes several safety features such as an under voltage lock out (UVLO) which will shut down the device if the input voltage falls below a specified threshold. Additionally, the device can automatically enter a low-power shutdown mode when the device is not actively regulating.

Conclusion

The MP5017GD-Z is a highly efficient monolithic buck switching regulator specifically designed for single-cell lithium-ion/polymer battery-powered applications. The device can provide a stable output voltage with a high power efficiency and fast transient response, making it suitable for a variety of portable and industrial applications. Additionally, the device includes several safety features such as an under voltage lock out (UVLO) and current limit protection, making it a reliable and robust power management solution.

The specific data is subject to PDF, and the above content is for reference