IRU1015-33CD

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: TO-252-3 (DPAK)

Essence: The IRU1015-33CD is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity: The IRU1015-33CD is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 3.3V
• Dropout Voltage: 0.6V (typical)
• Output Current: Up to 1A
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU1015-33CD has three pins:

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

Functional Features

• Low Dropout Voltage: The IRU1015-33CD exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1A, this voltage regulator can handle a wide range of load requirements.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, allowing flexibility in meeting specific application needs.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Short Circuit Current Limiting: The IRU1015-33CD limits the output current in case of a short circuit, protecting both the IC and the connected components.
• Overcurrent Protection: It provides overcurrent protection, safeguarding against excessive current flow.

Advantages and Disadvantages

Advantages: - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short circuit current limiting - Overcurrent protection

Disadvantages: - Dropout voltage of 0.6V may not be suitable for applications with low input voltages.

Working Principles

The IRU1015-33CD operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. The internal circuitry ensures stable regulation by adjusting the pass transistor's resistance to maintain the desired output voltage.

Detailed Application Field Plans

The IRU1015-33CD finds applications in various electronic devices and systems, including but not limited to: 1. Power supplies for microcontrollers and other digital circuits 2. Battery-powered devices requiring regulated voltage 3. Automotive electronics 4. Industrial control systems 5. Communication equipment

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and features.
2. LT1086-3.3: Offers higher output current capability and lower dropout voltage.
3. TPS72333: Provides adjustable output voltage and enhanced thermal management.

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

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