MP28257DD-LF-P

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

MP28257DD-LF-P Application Field and Working Principle

The MP28257DD-LF-P is a PMIC (Power Management Integrated Circuit) DC-DC Switching Regulator which belongs to the voltage regulator category. This type of regulator is used in a variety of fields and products in order to ensure continuous power supply and to adjust the voltages of the device.

The MP28257DD-LF-P is a DC-DC buck regulator with fixed voltage output. As a step-down DC-DC converter, it has a switching frequency of 300kHz and an adjustable output voltage range between 0.63V and 3.3V. Its input voltage range is from 4.5V to 20V, making it ideal for medium to small power applications. Its features also include high accuracy and efficiency, current-mode control, an under-voltage lockout function, over-voltage protection, and a thermal shutdown protection.

Apart from its high accuracy and efficiency, the MP28257DD-LF-P also has an impressive power density. It has an 8-pin DIP (Dual In-line Package) package that is only 4mm in height, making it ideal for use in high density systems. Additionally, the device is RoHS compliant, as well as under-voltage lockout and over-voltage protection compliant.

Applications

The MP28257DD-LF-P is suitable for use in a wide range of applications, such as smartphones, Bluetooth speakers and other IoT (Internet of Things) solutions. Other applications for the device include automotive accessories and power systems for smart homes. It is also used in compact display systems and DSP (digital signal processing) systems.

Working Principle

The MP28257DD-LF-P is a DC-DC buck regulator. This means that it takes an input voltage at 4.5V to 20V and regulates its output voltage at 0.63V to 3.3V. The switching frequency of the device is 300kHz to ensure that it is efficient, accurate and has a low output voltage ripple. The device also utilizes current-mode control and has a thermal shutdown protection.

The MP28257DD-LF-P works using a synchronous rectification technique, with an internal PWM (Pulse Width Modulation) voltage regulator and an external N-channel MOSFET (Metal Oxide Semiconductor Field Effect Transistor) as the main components. At the same time, it also has an under-voltage lockout function, as well as over-voltage protection, to ensure safe and reliable operation.

The device also has a built-in start-up timeout circuit which limits the initial current drawn from the input source. This prevents excessive current from being drawn from the input source at startup, as well as reducing power consumption during normal operation.

Conclusion

The MP28257DD-LF-P is a PMIC DC-DC Switching Regulator which is ideal for medium to small power applications. It uses a synchronous rectification technique to regulate its output voltage at 0.63V to 3.3V. It is suitable for use in a variety of applications, such as smartphones and IoT solutions. Additionally, the device is RoHS compliant, as well as under-voltage lockout and over-voltage protection compliant.

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