MP28128DQ-LF-P

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MP28128DQ-LF-P can be classified as a PMIC (Power Management Integrated Circuit) or voltage regulators for DC DC (Direct-Current to Direct-Current) switching regulators. This device can be used to design small, low-cost power supplies, designed for space-powering, low-voltage electronic systems, such as those found in TV remotes, cordless phones, and battery-operated toys.The MP28128DQ-LF-P is an adjustable, high efficiency, step-down DC DC switching regulator, designed to provide excellent performance in a wide range of applications. It has 18V operating voltage and 2A of current output capabilities; It is ideal for powering sensitive and micro devices in space-sensitive applications.The working principle of the device is based on the concept of voltage regulation. Through a power stage, the device controls the output voltage to be maintained close to a specific level, minimizing the difference between the input and output voltages. This is done by means of a feedback loop that constantly monitors the output voltage, comparing it to the reference in order to adjust the output voltage in order to keep it constant.The MP28128DQ-LF-P has a reverse current protection circuit, with an integrated MOSFET switch that will turn off the power to the load during a reverse current situation, protecting the load from damage. The circuit also has a thermal cut-off and over-current protection functions. The device also features a Power Good signal for shut-down and system reset. This signal indicates to the processor that the desired output voltage is within specification. A load regulation of 3% of the output voltage is achieved by using the current mode pulse-width modulation control, as well as a current shut-down feature.The main application fields for the MP28128DQ-LF-P are handheld and portable systems, portable communication devices, battery powered-devices, chargers, motor control, and level shifting systems. This device can be used in a variety of applications, such as powering displays, microphones, and keyboards, and can also be used to provide power to RF (Radio Frequency) and cellular phone transceivers.In conclusion, we can say that the MP28128DQ-LF-P is a highly efficient, low-cost, adjustable DC DC step-down switching regulator. It offers high performance, several protection features, as well as an adjustable power good signal, making it suitable for a variety of applications, especially for handheld and portable systems. The device offers good thermal protection and can be used for a number of different types of power applications.

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