MPQ4491MGRE-AEC1-P

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Fixed
Number of Outputs:	1
Voltage - Input (Min):	7V
Voltage - Input (Max):	36V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	--
Current - Output:	2.5A
Frequency - Switching:	Selectable
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)

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Introduction

The MPQ4491MGRE-AEC1-P is a switching regulator in the form of a PMIC, or power management integrated circuit. This circuit is used for applications that require regulating a power supply, by switching it rapidly between two states of operation. It is often used in designs for electronic applications, whereby the output is adjustable, giving it flexibility in how it can be used.

Application Fields

The MPQ4491MGRE-AEC1-P can be used in various types of applications, with the primary purpose being to regulate the voltage from a power source. This can range from power supplies in consumer electronics products to complex industrial systems. The MPQ4491MGRE-AEC1-P is also used in power conditioning in battery backup systems. It can stabilize the output of a battery which can then be used to provide reliable, consistent power. This can be used to provide backup power for electricity outages or temporary interruptions.The MPQ4491MGRE-AEC1-P can also be used in automotive applications. As a switching regulator, it can be used to control the voltage in car batteries and electronic components, ensuring that the power supplied is kept within an optimal level.

Working Principle

The MPQ4491MGRE-AEC1-P is a switching regulator, meaning that it rapidly switches between two states of operation. This is done by using a transistor to control the supply voltage. When the voltage exceeds the preset level, the transistor is switched off, and when the voltage drops, the transistor is switched on. The switching speed of the transistor, which is connected to the output, controls the average voltage.The MPQ4491MGRE-AEC1-P also features thermal protection, which helps maintain a stable output, even when the supply voltage is low. This is achieved by having two internal regulators which maintain a constant voltage, regardless of the supply voltage.The MPQ4491MGRE-AEC1-P also features an adjustable output current limit, which helps to control the output current as required. This helps to ensure the output voltage does not fall too far and that the electrical device that is being powered does not overload the power supply.

Conclusion

The MPQ4491MGRE-AEC1-P is a PMIC, or power management integrated circuit, which is used to regulate the power supply in a variety of applications. It is a switching regulator, as it rapidly switches between two states of operation, to enable a regulated voltage output. This can be used in consumer electronics, battery backup systems, and automotive applications, to ensure that the power supply is kept within an optimal level. Features such as an adjustable output current limit and thermal protection ensure a reliable and stable output.

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