IRU1030-33CM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Input Voltage Range: 4.5V to 18V - Output Voltage: 3.3V - Maximum Output Current: 3A - Package Type: TO-252-3 (DPAK) - Essence: Low Dropout Linear Regulator - Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The IRU1030-33CM is a voltage regulator IC designed for use in various electronic devices. It operates within an input voltage range of 4.5V to 18V and provides a stable output voltage of 3.3V. With a maximum output current of 3A, it can efficiently regulate the voltage supply to power different components of a circuit.

Pin Configuration

The IRU1030-33CM features a standard TO-252-3 (DPAK) package with three pins. The pin configuration is as follows:

1. Pin 1: Input Voltage (VIN)
2. Pin 2: Ground (GND)
3. Pin 3: Output Voltage (VOUT)

Functional Features

• Low Dropout: The IRU1030-33CM exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Overcurrent Protection: It incorporates overcurrent protection to safeguard the connected circuitry from excessive current flow.
• Thermal Shutdown: The IC includes thermal shutdown functionality, which prevents overheating by shutting down the device if the temperature exceeds a certain threshold.
• Fast Transient Response: It offers a fast transient response, enabling quick adjustments to changes in load conditions.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - High output current capability suits power-hungry devices. - Low dropout voltage minimizes power dissipation. - Overcurrent protection enhances circuit safety. - Thermal shutdown prevents damage due to overheating.

Disadvantages: - Limited output voltage options (fixed at 3.3V). - Requires external components for proper operation. - Relatively large package size may not be suitable for compact designs.

Working Principles

The IRU1030-33CM operates based on the principle of linear regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By comparing the output voltage with a reference voltage, the IC adjusts the pass transistor's resistance to maintain a stable output voltage despite variations in the input voltage or load conditions.

Application Field Plans

The IRU1030-33CM finds application in various electronic systems where a stable 3.3V power supply is required. Some potential application fields include: - Microcontrollers and microprocessors - Communication devices - Audio/video equipment - Industrial control systems - Automotive electronics

Alternative Models

For those seeking alternative options, the following voltage regulator ICs can be considered: - LM1117-3.3: Similar specifications, TO-220 package - LT1086-3.3: Higher output current, adjustable output voltage, TO-220 package - TPS7A3301: Lower dropout voltage, adjustable output voltage, SOT-223 package

These alternatives provide different features and package options, allowing users to choose the most suitable option for their specific requirements.

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