MP4420GJ-Z

Voltage - Input (Max):	30V
Supplier Device Package:	TSOT-23-8
Package / Case:	SOT-23-8 Thin, TSOT-23-8
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	410kHz
Current - Output:	2A
Voltage - Output (Max):	27V
Voltage - Output (Min/Fixed):	0.8V
Series:	--
Voltage - Input (Min):	4V
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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The MP4420GJ-Z is a DC DC switching regulator device designed to offer robust and efficient power supply solutions while also taking into consideration small power stages and lower power dissipation. In this device, the input voltage is converted into a DC output voltage that can be adjusted to user desired levels. The device implements the fixed frequency PWM system, where the switching frequency is set internally at 1MHz.The applications of the MP4420GJ-Z range from small-scale power supplies for microcontroller-based systems that require low quiescent current and high efficiency, to high voltage requirements of precision analog circuits, to high power LED drivers, to secondary-side switching in AC/DC power supplies. In addition, the MP4420GJ-Z features a wide range of features for fixed voltage and adjustable voltage applications, including output voltage range adjustment with a single resistor, current mode control and over-temperature protection.The core of the MP4420GJ-Z is a PWM architecture based on the synchronous buck converter topology. This architecture utilizes two semiconductor switches, an input storage capacitor or inductor and a freewheeling diode. When the current through the main switch is turned on, energy is stored in these components. The current then continues to flow and charge the output capacitor until the current exceeds the threshold set by the PWM comparator, and the main switch is turned off. Then, the output can be regulated and the output voltage converted to the desired levels. The MP4420GJ-Z features a soft-start and the maximum current limit, which protect the device from over-current conditions that may occur during start-up. A signal feedback to the PWM control IC adjusts the output voltage with the use of a voltage divider composed of resistors connected in series or a potentiometer.The MP4420GJ-Z has an adjustable peak current limit circuit between 0.5 to 1A, which means that the peak current can be accurately adjusted when the product is operating in any given environment. This can help prevent excessive currents in the event of a surge. Additionally, the device implements over-temperature protection and features anti-lock protection circuitry.Overall, the MP4420GJ-Z is an excellent DC DC switching regulator optimized for low-power applications. The device offers excellent performance and efficiency, thanks to its synchronous buck architecture, and is capable of providing stable, adjustable and accurate output voltage levels. The MP4420GJ-Z also features a wide range of features, ranging from over temperature protection to adjustable peak current limit, to protect the device from over-current conditions that may occur during start-up or in the event of a surge. Considering the low power requirements and high efficiency, this device is an ideal choice for small-scale power supplies, high voltage requirements of precision analog circuits, and high power LED drivers.

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