MP1567DQ-LF-P

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As the miniaturization of electronic products has been increasingly increased, their power consumption is also greatly increased. In order to meet the requirements of power consumption reduction and efficiency increase, the MP1567DQ-LF-P module, a DC-DC buck-boost switching regulator designed with a synchronous rectifier, has become the preferred choice for many applications, due to its light weight, small size and good efficiency.MP1567DQ-LF-P is categorized as belonging to the PMIC (Power Management Integrated Circuit) Voltage Regulators and DC DC Switching Regulators. It is suitable for both commercial and industrial applications such as industrial power supply, battery charger, and mobile equipment charger etc.The MP1567DQ-LF-P is composed of a power stage, an error amplifier, a power switch and a protection circuit. The power stage composed of a synchronous rectifier and an output inductor is responsible for output voltage regulation. The error amplifier compares the output voltage with a voltage reference as feedback and transmits the error signal to the power switch. The power switch is a power MOSFETthat translates the signal from the error amplifier into switching on and off. By controlling the duty cycle of the consequence signal to the switch, the average current in the power loop is controlled, and the output voltage is controlled.The protection circuit is composed of a current limit detection, over voltage protection and under voltage protection. The current limit detection circuit is to detect whether the output current is exceeding the overcurrent protection point. The OVP (over voltage protection) circuit is used to protect the device when the output voltage is higher than the allowable range. The UVP (under voltage protection) circuit is to protect the device when the output voltage is lower than the allowable range.Finally, the MP1567DQ-LF-P has a rated output range covering 2.5V-7.2V and an output current up to 1.5A. And, the output voltage can be adjusted from 2.5V to 7.2V, with efficiency up to 94%; Furthermore, the device has many protection functions, like output-short, thermal protection, etc.To sum up, the MP1567DQ-LF-P is perfectly suitable for applications of industrial power supply, battery charger and mobile equipment charger, to meet the requirements of power consumption reduction and efficiency increase. The device also provides many features, such as an output range from 2.5V to 7.2V, current limit detection, over voltage protection and under voltage protection, etc., which make the MP1567DQ-LF-P the perfect choice among DC-DC buck-boost switching regulators.

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