IRU1050-33CT

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Overcurrent protection - Short-circuit protection

Package: TO-220

Essence: The IRU1050-33CT is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The IRU1050-33CT is typically sold in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage: 3.3V
• Output Current: Up to 5A
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU1050-33CT has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. ADJ: Adjustable pin (used for fine-tuning the output voltage)

Functional Features

• Low Dropout Voltage: The IRU1050-33CT has a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 5A, this voltage regulator can handle high-power applications.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive heat.
• Overcurrent Protection: It features overcurrent protection, safeguarding the circuit from excessive current flow.
• Short-Circuit Protection: The IRU1050-33CT is equipped with short-circuit protection, preventing damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Stable output voltage - High output current capability - Thermal and overcurrent protection - Compact TO-220 package

Disadvantages: - Dropout voltage may not be suitable for ultra-low power applications - Limited adjustability of the output voltage

Working Principles

The IRU1050-33CT operates as a linear voltage regulator. It regulates the input voltage to a stable 3.3V output voltage by using a feedback mechanism. The adjustable pin (ADJ) allows fine-tuning of the output voltage if required.

Detailed Application Field Plans

The IRU1050-33CT is commonly used in various electronic devices that require a stable 3.3V power supply. Some typical application fields include:

1. Consumer Electronics: Used in portable devices, such as smartphones, tablets, and digital cameras.
2. Industrial Automation: Employed in control systems, motor drives, and power supplies.
3. Automotive Electronics: Utilized in automotive infotainment systems, lighting controls, and engine management systems.
4. Telecommunications: Found in networking equipment, routers, and modems.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package type.
2. LT1085CT-3.3: Offers higher output current capability and lower dropout voltage.
3. TPS7A3301: Provides ultra-low dropout voltage and adjustable output voltage.

These alternative models can be considered based on specific requirements and design constraints.

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