IRU1150CSTRPBF

Current - Output:	4A
Base Part Number:	IRU1150CSPBF
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
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Part Status:	Obsolete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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Introduction

IRU1150CSTRPBF is an advanced linear voltage regulator from a leading manufacturer, which works with low supply current, low dropout voltage, and high power saving efficiency, thus allowing it to be used for various power management applications. This voltage regulator is available as a tiny 2.0mm x 1.8mm 6-lead SOT-23 package that makes it ideal for space-sensitive applications.

Features

Some of the notable features of the IRU1150CSTRPBF voltage regulator include:• High Accuracy: The IRU1150CSTRPBF is designed to provide a precise output voltage throughout the operating temperature range (-40°C to +85°C).• Low Quiescent Current: The voltage regulator has very low quiescent current of 7 μA max, thus enabling it to be used in power sensitive applications.• PSRR & Load Regulation: The IRU1150CSTRPBF has a power supply rejection ratio of 75dB at 1KHz, 70 dB at 10KHz indicating noise rejection, and a load regulation of 0.5%.• Overcurrent & Thermal Protection: The voltage regulator features over-current and thermal protection, which helps prevent damage to the regulator from excessive load current or from overheating.• Output Short-Circuit Protection: The IRU1150CSTRPBF has output short-circuit protection, which prevents any damage to the regulator under excessive load conditions.• Fast Transient Response: The voltage regulator has fast transient response of 5µs, thus allowing it to respond quickly to changing load conditions.• Compatibility: The IRU1150CSTRPBF is compatible with TTL, CMOS, and power MOSFET technologies.

Applications

The IRU1150CSTRPBF voltage regulator can be used in a wide range of applications including:• Automotive Electronics: The regulator can be used in automotive electronics such as vehicle control systems, monitoring systems, communication systems, and power supply systems.• Industrial Electronics: The regulator can be used in industrial process control and monitoring systems, printing systems, robotic systems, and security systems.• Telecom & Network Systems: The regulator can be used in telecom and network systems such as voice recognition systems, digital switching systems, access control systems, and long distance transmission systems.• Medical Electronics: The regulator can be used in many different types of medical electronics such as patient monitoring systems, surgical instrumentation, and imaging systems.• Consumer Electronics: The regulator can be used in consumer electronics such as cell phones, digital cameras, portable media players, and wearable electronics.

Working Principle

The working principle of the IRU1150CSTRPBF voltage regulator is based on current-mode regulated feedback loop. The regulator senses the output voltage with a voltage divider, and compares it to a reference voltage. The difference between these two voltages is then fed to an amplifier, which is designed to sense the output current and supply control signals to the pass transistor. This transistor acts controls the output current, and adjusts the output voltage to maintain the desired level. The voltage regulator can regulate the output voltage to within 0.2% of the nominal value.

Conclusion

The IRU1150CSTRPBF is a highly efficient and accurate voltage regulator which is suitable for many different applications. It has low quiescent current and high power saving efficiency, making it suitable for battery powered systems. It has fast transient response and output short-circuit protection, making it ideal for use in applications where fast protection is needed. It is also compatible with many different technologies, allowing it to be used with different types of circuits.

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