IRU3021MCW

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: Miniature Ceramic Package

Essence: The IRU3021MCW is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: Available in tape and reel packaging, with 1000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The IRU3021MCW has the following pin configuration:

```

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| | --| VIN VOUT|-- --| GND ADJ |-- |___________| ```

• VIN: Input voltage pin
• VOUT: Output voltage pin
• GND: Ground pin
• ADJ: Adjust pin (used to set the output voltage)

Functional Features

1. High Efficiency: The IRU3021MCW offers high efficiency, minimizing power loss and maximizing battery life in portable devices.
2. Low Dropout Voltage: With a low dropout voltage of 200mV at 1A, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
3. Adjustable Output Voltage: The ADJ pin allows users to adjust the output voltage within the specified range according to their application requirements.
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 IC activates thermal shutdown protection, preventing damage due to overheating.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Compact package size

Disadvantages: - Limited maximum output current (1A)

Working Principles

The IRU3021MCW operates as a linear voltage regulator. It regulates the output voltage by comparing the reference voltage with the feedback voltage obtained from the ADJ pin. The internal circuitry adjusts the pass transistor to maintain a stable output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The IRU3021MCW is suitable for various applications that require a regulated power supply, such as: - Battery-powered devices - Portable electronic devices - Embedded systems - Consumer electronics - Industrial control systems

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable Voltage Regulator, 800mA Output Current
2. LT1086-ADJ: Adjustable Low Dropout Regulator, 1.5A Output Current
3. TPS79601-ADJ: Adjustable Ultra-Low Noise LDO Regulator, 1A Output Current

These alternative models offer similar functionality and can be considered based on specific application requirements.

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