MP3910AGS-Z

Series:	--
Part Status:	Active
Output Type:	PWM Signal
Function:	Step-Up
Output Configuration:	Positive
Topology:	Boost
Number of Outputs:	1
Output Phases:	1
Voltage - Supply (Vcc/Vdd):	9 V ~ 14 V
Frequency - Switching:	30kHz ~ 400kHz
Duty Cycle (Max):	95%
Synchronous Rectifier:	No
Clock Sync:	No
Serial Interfaces:	--
Control Features:	Current Limit, Frequency Control, Soft Start
Operating Temperature:	-40°C ~ 125°C (TJ)

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MP3910AGS-Z Application Field and Working Principle

The MP3910AGS-Z is a Voltage Regulator from the DC DC Switching Controllers product family, capable of providing up to 5A of continuous current. It helps to keep the voltage of the device\'s power supply constant, even under varying load conditions. This type of component is typically employed in applications where the power requirements change, such as automotive, consumer electronics, telecommunications, and industrial applications. This type of component is most helpful in regulating the output voltage of the device\'s power supply while reducing both the overall power consumption and the cost of the design.

Specifications

The salient features of the MP3910AGS-Z include:

• Output voltage up to 35V
• Input voltage range of 4.5V to 35V
• 3 Different available packages
• Maximum Continuous Output Current of 5A
• Net Load Regulation: ± 5mV
• Terminal voltage accuracy at TA= 25°C: ± 1.25%
• RoHS Compliant

The MP3910AGS-Z is equipped with a number of features to ensure robust and reliable operation, such as a frequency clamp that prevents premature shift to light load mode, a soft start that limits inrush current during start up, and a peak current limit that ensures the current consumed from the main bus does not exceed the peak current limit. In addition, the MP3910AGS-Z is able to operate with a wide variety of output inductors and capacitors. Furthermore, the MP3910AGS-Z is capable of working with a wide variety of input voltage ranges and can be used in both high and low side applications.

Application Fields

The MP3910AGS-Z can be used in a variety of applications where consistent voltage is necessary, such as automotive systems, consumer electronics, home appliances, servers and storage, industrial applications, and telecommunications. Its small form factor and 3 different available packages makes it easy to use across a wide range of applications.

Working Principle

The MP3910AGS-Z is a Switch Mode DC DC converter which utilizes the buck topology. This type of converter is able to switch between two different DC voltage levels. It does this work by using a power switch (MOSFET), which is operated rapidly, to switch between the two levels. The switch is opened and closed at a frequency determined by an external clock. The rapid switching of the MOSFET allows for a conversion of the input voltage to a lower output voltage, which can then be used by various components. At the heart of the device lies a Control Logic, which monitors the output voltage and current and adjusts the switching frequency of the MOSfet to maintain a constant output voltage. The actual control loop depends on the value of feedback resistor which is connected to an internal voltage reference. The MP3910AGS-Z also features a wide variety of protection features, such as an Over Voltage Protection (OVP), an Over Current Protection (OCP), and an input Initial Fault Protection (IFP). These features protect the device from overvoltage, overcurrent and other potential faults such as short circuits.

Conclusion

The MP3910AGS-Z is a Voltage Regulator from the DC DC Switching Controllers family, capable of providing up to 5A of continuous current and is able to operate with a wide variety of output inductors and capacitors. This type of component is typically employed in applications where the power requirements change, such as automotive, consumer electronics, telecommunications, and industrial applications. It features an array of protection features and the ability to work with a wide variety of input voltage ranges and can be used in both high and low side applications.

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