IRU1150CPTR

Current - Output:	4A
Base Part Number:	IRU1150CP
Supplier Device Package:	516-Ultra Thin-Pak™
Package / Case:	TO-252-6, DPak (5 Leads + Tab)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	70dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.2V @ 4A
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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• IRU1150CPTR Application Field and Working Principle

Power management integrated circuits (PMICs) are microelectronic devices used to supply power to different components in various systems. PMICs, also known as voltage regulators, help regulate the voltage, current and power of microprocessor-based systems, as well as other power-consuming components, thereby ensuring that they work properly. Among these types of PMICs, Linear Voltage Regulators, or Linear Regulators, are one of the most commonly used, as they are capable of efficiently controlling electric power. The IRU1150CPTR, produced by Infineon Technologies, is a leading example of a Linear Voltage Regulator. In this article, we will discuss the application of IRU1150CPTR in various electronics systems as well as its working principle.

• IRU1150CPTR Application

The IRU1150CPTR is a positive voltage regulator, typically used for mobile applications such as mobile phones and tablets, which need a stable power supply. This Linear Voltage Regulator delivers a fixed output voltage up to 12.0V, dissipation up to 800mW, and can operate over a range of temperatures from -40°C to +125°C. It has an adjustable threshold over-voltage protection, as well as an adjustable over-current protection. The IRU1150CPTR is typically used to regulate voltage on a system-on-chip (SoC) microcontroller, as it is capable of delivering up to 800 mA of current at its output.The IRU1150CPTR is also used in various industrial and aerospace applications, due to its ability to operate in a wide range of temperatures. It can be used to efficiently regulate voltage in a variety of environments, including extreme temperatures and atmospheric conditions. In addition, because of its adjustable characteristics, this Linear Voltage Regulator can be used to fine-tune the voltage or current of an electronic system, enabling improved performance and reliability.

• IRU1150CPTR Working Principle

The IRU1150CPTR is a three-terminal linear voltage regulator. It consists of an input terminal, an output terminal, and a ground terminal. The input voltage is provided to the input terminal, and the output terminal is used to supply a refined output voltage. The ground terminal is used to provide a reference voltage, and act as a reference point for all voltages in the circuit. The IRU1150CPTR contains an integrated pass transistor, which limits the current through the output terminal. It works in combination with a precision voltage reference, which is used to limit the output voltage to a predetermined level. The voltage reference is set to be slightly higher than the required output voltage. This ensures that the current is not limited, and that the output voltage is consistent even under varying load conditions.The IRU1150CPTR also contains a current regulating loop, which monitors the output current. The current regulating loop consists of a resistive divider network, connected in parallel with the output terminal of the pass transistor. This loop senses the voltage drop across the pass transistor and adjusts its resistance accordingly, limiting the current at the output terminal. This ensures the output voltage stays constant even when the load conditions change.

• Conclusion

The IRU1150CPTR is a three-terminal linear voltage regulator, capable of delivering a fixed output voltage of up to 12.0V. It is used in various applications, ranging from mobile devices such as mobile phones and tablets, to industrial and aerospace applications. It is also capable of operating over a vast range of temperatures, and has adjustable characteristics for fine-tuning voltage and current. The IRU1150CPTR is designed with a pass transistor and a precision voltage reference, as well as a current regulating loop, which work together to deliver a reliable and stable voltage output.

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