IRU3018CW

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: TO-220

Essence: The IRU3018CW is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The IRU3018CW is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V - 18V
• Output Voltage Range: 1.25V - 16V
• Output Current: Up to 3A
• Dropout Voltage: 300mV @ 3A
• Quiescent Current: 120μA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU3018CW has the following pin configuration:

```

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| | --| Vout | --| Vin | --| GND | --| ADJ | |___________| ```

Functional Features

1. High Efficiency: The IRU3018CW offers high efficiency, minimizing power loss and maximizing battery life in portable devices.
2. Low Dropout Voltage: With a low dropout voltage of 300mV at 3A, the IRU3018CW ensures stable output voltage even when the input voltage is close to the desired output voltage.
3. Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor, providing flexibility for different applications.
4. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the connected circuitry from excessive current flow.
5. Thermal Shutdown Protection: In case of excessive temperature rise, the IRU3018CW automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Adjustable output voltage for versatile applications - Overcurrent and thermal shutdown protection ensure device safety

Disadvantages: - Dropout voltage may limit its use in low voltage applications - Requires external components for proper operation

Working Principles

The IRU3018CW operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the feedback received from the ADJ pin. The internal circuitry compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The IRU3018CW finds applications in various electronic devices that require a regulated power supply. Some common application fields include: 1. Mobile devices (smartphones, tablets) 2. Portable audio players 3. Wireless communication systems 4. Industrial control systems 5. Automotive electronics

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator IC with similar features and performance.
2. LT1083: A high-current, adjustable linear regulator suitable for demanding applications.
3. LM7805: A fixed 5V voltage regulator commonly used in low-power circuits.

These alternative models offer different specifications and package options, providing flexibility to suit specific design requirements.

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