IRU1010-33CP

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Provides a regulated output voltage - Converts higher input voltage to a lower, stable output voltage - Ensures consistent power supply to electronic devices

Package: TO-220

Essence: The IRU1010-33CP is a voltage regulator IC that regulates the output voltage to a constant 3.3 volts.

Packaging/Quantity: The IRU1010-33CP is typically packaged in a TO-220 package and is available in various quantities depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage: 3.3V
• Output Current: Up to 1A
• Dropout Voltage: 1.2V (maximum)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU1010-33CP has three pins:

1. Input Pin (VIN): This pin is connected to the input voltage source.
2. Output Pin (VOUT): This pin provides the regulated output voltage of 3.3V.
3. Ground Pin (GND): This pin is connected to the ground reference.

Functional Features

• Voltage Regulation: The IRU1010-33CP ensures a stable output voltage of 3.3V regardless of variations in the input voltage or load conditions.
• Overcurrent Protection: The IC incorporates overcurrent protection to prevent damage to the circuitry in case of excessive current flow.
• Thermal Shutdown: In case of excessive temperature, the IC shuts down to prevent overheating and potential damage.
• Short Circuit Protection: The IC is designed to protect against short circuits, ensuring the safety of the connected devices.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - High output current capability of up to 1A. - Excellent line and load regulation ensures a stable output voltage. - Built-in protection features enhance reliability and safety.

Disadvantages: - Dropout voltage of 1.2V may limit its use in low-power applications. - TO-220 package may require additional heat sinking for high-power applications.

Working Principles

The IRU1010-33CP utilizes a feedback control mechanism to maintain a constant output voltage. It compares the actual output voltage with a reference voltage and adjusts the internal circuitry to regulate the output voltage at the desired level. This control loop continuously monitors and adjusts the output voltage, compensating for variations in the input voltage and load conditions.

Detailed Application Field Plans

The IRU1010-33CP finds applications in various electronic systems that require a stable 3.3V power supply. Some common application fields include:

1. Embedded Systems: Used in microcontroller-based systems, IoT devices, and industrial automation equipment.
2. Consumer Electronics: Powering digital cameras, portable audio players, and other battery-operated devices.
3. Automotive Electronics: Providing regulated power to automotive sensors, infotainment systems, and lighting modules.
4. Telecommunications: Used in networking equipment, routers, and communication devices.
5. Power Supply Modules: Incorporated into power supply units to ensure stable voltage output.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. MC33269-3.3: Another alternative offering comparable performance and package options.
3. LT1086-3.3: A high-performance alternative with lower dropout voltage and better line regulation.

These alternatives can be considered based on specific requirements and availability in the market.

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