IRU3027CW

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: TO-220

Essence: The IRU3027CW is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The IRU3027CW is typically packaged in a TO-220 package. It is available in reels or tubes, with a quantity of 50 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V - 24V
• Output Voltage Range: 1.25V - 20V
• Output Current: Up to 3A
• Dropout Voltage: 0.6V @ 3A
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU3027CW has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1: Input Voltage (VIN) / Ground (GND) --| VOUT ADJ |-- Pin 2: Output Voltage (VOUT) / Adjust (ADJ) --| NC NC |-- Pin 3: Not Connected (NC) |___________| ```

Functional Features

• High Efficiency: The IRU3027CW offers high efficiency, minimizing power loss and maximizing battery life.
• Low Dropout Voltage: With a low dropout voltage of 0.6V at 3A, it can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 4.5V to 24V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted using an external resistor, allowing flexibility in meeting specific voltage requirements.
• Overcurrent Protection: The IRU3027CW incorporates overcurrent protection, safeguarding the circuit and connected devices from excessive current.
• Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to prevent damage due to overheating.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Dropout voltage may limit its use in low voltage applications - Limited pin configuration options

Working Principles

The IRU3027CW operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the difference between the reference voltage and the feedback voltage. By adjusting the resistance connected to the ADJ pin, the output voltage can be set to the desired level.

Detailed Application Field Plans

The IRU3027CW is commonly used in various electronic devices and applications, including: 1. Power supplies for consumer electronics 2. Automotive electronics 3. Industrial control systems 4. Battery-powered devices 5. Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the IRU3027CW include: - LM317: Adjustable voltage regulator with a wide input voltage range. - LT1083: High current, adjustable voltage regulator with low dropout voltage. - LM1117: Low dropout voltage regulator with fixed output voltage options.

These alternative models can be considered based on specific requirements and application needs.

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