IRU1117-33CP

Voltage Dropout (Max):	1.3V @ 1A
Base Part Number:	IRU1117-33CP
Supplier Device Package:	2-Ultra Thin-Pak
Package / Case:	2-Ultra Thin-Pak™
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	70dB (120Hz)
Current - Output:	800mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

IRU1117-33CP is a voltage regulator module designed and manufactured by Infineon Technologies AG. It is mainly used to reduce the output of a power supply to a desired stable voltage. It is typically used in industrial and consumer electronic applications such as portable devices, automotive, networking and IoT devices. The IRU1117-33CP can be classified as a linear voltage regulator.

Overview

The IRU1117-33CP is a 3.3V voltage regulator that offers an adjustable output voltage range of 1.7V to 6.5V. It can provide up to 800mA of continuous current. The module features an integrated power good indicator, thermal-shutdown and undervoltage protection, and low dropout voltage. Additionally, it has a built-in EMI filter to eliminate potential interference from the load. The IRU1117-33CP is packaged in a small SOT–223 package. The operating temperature range for this module is -40°C to +125°C. It is available in both leaded and lead-free versions, making it a suitable choice for both commercial and industrial applications.

Application Field

The IRU1117-33CP is an ideal choice for applications that require a power supply with a low noise, low ripple, and high output accuracy. This makes it suitable for a wide range of applications, including industrial, automotive, and consumer electronics. It can be used in a wide range of systems such as networking devices, mobile phones, portable devices, and IoT nodes. The IRU1117-33CP can also be used in energy-efficient designs, as its low dropout voltage ensures a high efficiency. Additionally, the integrated EMI filter eliminates potential EMI sources from the load, making this module suitable for many sensitive applications.

Working Principle

The IRU1117-33CP is a linear voltage regulator, which means it regulates the output voltage of a power supply by adjusting its internal resistance. The internal resistance is adjusted to create a voltage drop across its pins, which acts as a buffer between the input voltage and the output voltage.The output voltage is determined by the regulator\'s error amplifier, which measures the difference between the output voltage and the reference voltage. The error amplifier then adjusts the internal resistance accordingly, to create a voltage drop needed to bring the output voltage to the desired level. The IRU1117-33CP also features an integrated power good indicator, which will indicate when the output voltage is outside of the specified range. Additionally, it also features a thermal shutdown and an undervoltage protection, which will shut down the regulator in the event of a fault.

Conclusion

The IRU1117-33CP is a 3.3V voltage regulator that can be classified as a linear voltage regulator. It is designed to reduce the output of a power supply to a desired stable voltage, and it can provide up to 800mA of continuous current. It is suitable for applications that require a low noise, low ripple, and high output accuracy, making it a suitable choice for many industrial and consumer electronic applications. The working principle of this module is based on adjusting its internal resistance to create a voltage drop between the input and output. Additionally, it also features multiple safeguards, including a power good indicator, thermal-shutdown and undervoltage protection.

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