MP8620DQK-LF-P

Voltage - Input (Max):	16V
Supplier Device Package:	36-QFN (6x6)
Package / Case:	36-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	300kHz ~ 1.5MHz
Current - Output:	25A
Voltage - Output (Max):	14.5V
Voltage - Output (Min/Fixed):	0.8V
Series:	--
Voltage - Input (Min):	6V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MP8620DQK-LF-P is a DC/DC switching regulator, part of the PMIC Voltage Regulators product family, offered by Monolithic Power System (MPS). These devices are designed to control and regulate the output voltage of an electrical system. The MP8620DQK-LF-P is a high current DC/DC synchronous step-down converter which can provides high conversion efficiency and low output ripple by integrating FETs, a Schottky diode, and all the necessary control circuitry.

Functionality and Features

The MP8620DQK-LF-P has various features that provide flexibility and design simplicity while ensuring superior performance. It provides a wide range of adjustable output voltage, which can be set by an external resistor divider. This device also integrates frequency synchronization up to 500 kHz, allowing external frequency adjustment to better enable adjustment of the operating frequency.In addition to these features, the MP8620DQK-LF-P offers an integrated protection feature which ensures safe and reliable operation. The protection features include over-temperature protection and over-current protection which will shut down the device if the temperature or current rises to an unsafe level.

Applications

The MP8620DQK-LF-P DC/DC switching regulator is mostly used in industrial and consumer applications. It is used in products such as LCD TVs, set-top box receivers, PCs, industrial equipment, UPSs, and portable applications such as battery chargers and cellphone chargers. As this device provides wide range of adjustable output voltage, it is suitable for applications that require high conversion efficiency and low output ripple.

Working Principle

The MP8620DQK-LF-P device consists of a power supply controller, integrated FETs and Schottky diodes, and the necessary control circuitry. The power supply controller takes the incoming input voltage, which is usually an AC mains power source, and converts it into a DC voltage. The controller then uses the DC voltage to control the drive of the integrated FETs to create an output voltage. The Schottky diode acts as a rectifier which ensures that the output voltage remains stable.The MP8620DQK-LF-P supports both constant voltage and constant current modes, depending on the application. In constant voltage mode, the controller keeps the output voltage constant by adjusting the FETs’ switching cycles. In constant current mode, the controller will adjust the voltage as necessary to maintain a constant current through the output.

Conclusion

The MP8620DQK-LF-P DC/DC switching regulator is a high performance device that is suitable for various industrial and consumer applications. It offers features such as adjustable output voltage, frequency synchronization, and integrated protection features, which make it a reliable and versatile device. This device is used in many applications such as LCD TVs, set-top box receivers, PCs, industrial equipment, UPSs, and portable applications such as battery chargers and cellphone chargers. The MP8620DQK-LF-P works by taking the input voltage and converting it into a DC voltage, which is then used to control the integrated FETs and create a stable output voltage.

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