MP4570GF-Z

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	55V
Voltage - Output (Min/Fixed):	1V
Voltage - Output (Max):	49.5V
Current - Output:	3A
Frequency - Switching:	520kHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	20-TSSOP-EP

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Introduction

The MP4570GF-Z is a DC-DC switching regulator designed for the power supply of various electronic systems. It is a volatile regulator which provides both constant voltage and constant current. It is ideal for use in applications such as LED lighting, power quality monitoring and medical equipment.

Descriptions

The MP4570GF-Z is a DC-DC switching voltage regulator with a wide input voltage range from 2.5V to 28V and a maximum output current of 3A. The output voltage is adjustable from 0.8V to 24V. The regulator features an on-board current detection module, Over Voltage Protection (OVP) and Over Current protection (OCP) for improved reliability and safety. It also features a thermal shutdown protection to prevent damage or failure due to excessive heat.

Components

The MP4570GF-Z consists of the following components:• Control Logic with Over Voltage & Over Current Protection • MOSFET• Inductors • Capacitors • Filter • Feed-Forward & Feedback Resistors

Working Principle

The MP4570GF-Z is a Pulse Width Modulated (PWM) voltage regulator. Its main function is to convert an incoming DC voltage to a desired output voltage. It works by operating a MOSFET in a switch-mode. The switching of the MOSFET is controlled by the control logic, which regulates the output voltage according to the feedback signal. The inductors and capacitors in the regulator provide the necessary filtering and stabilizing for the output voltage. The regulator has several features for improved reliability and safety. The Over Voltage Protection and Over Current Protection are used to prevent damage or malfunction due to excessive voltages or currents. The on-board current detection module is used to monitor the current in the system ensuring that no overload occurs. The thermal shut-down provides additional safety by automatically shutting the regulator off if the temperature exceeds the specified limit.

Applications

The MP4570GF-Z is designed for a wide variety of applications. It is ideal for use in LED lighting systems, power quality monitoring and medical equipment. It can also be used as a power source for embedded microcontrollers and radio frequency transceiver systems.

Conclusion

The MP4570GF-Z is a DC-DC switching regulator designed for a wide variety of the applications. It has both constant voltage and constant current output and features a wide range of safety and reliability features. The regulator is ideal for use in LED lighting systems, power quality monitoring and medical equipment.

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