IRU1010-33CDTR

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: DFN-8 (Dual Flat No-Lead)

Essence: The IRU1010-33CDTR is a voltage regulator IC designed to provide a stable output voltage with low dropout voltage. It is commonly used in various electronic devices to regulate and stabilize the voltage supply.

Packaging/Quantity: The IRU1010-33CDTR is typically packaged in reels containing 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V - 6.5V
• Output Voltage: 3.3V
• Dropout Voltage: 200mV at 1A
• Output Current: Up to 1A
• Quiescent Current: 120μA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU1010-33CDTR has the following pin configuration:

```

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| | --| Vout Vin|-- --| GND EN |-- --| FB NC |-- |___________| ```

• Vout: Output Voltage
• Vin: Input Voltage
• GND: Ground
• EN: Enable Pin
• FB: Feedback Pin
• NC: No Connection

Functional Features

1. Low Dropout Voltage: The IRU1010-33CDTR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
2. High Output Current Capability: With a maximum output current of 1A, this voltage regulator can handle a wide range of load requirements.
3. Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
4. Overcurrent Protection: It features overcurrent protection, safeguarding the circuit from excessive current flow.
5. Short-Circuit Protection: The IRU1010-33CDTR is equipped with short-circuit protection, preventing damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for versatile applications - Thermal shutdown, overcurrent, and short-circuit protections enhance reliability

Disadvantages: - Limited input voltage range (2.5V - 6.5V) - Quiescent current of 120μA may be relatively high for power-sensitive applications

Working Principles

The IRU1010-33CDTR operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By comparing the feedback voltage with a reference voltage, the IC adjusts the pass transistor to maintain a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The IRU1010-33CDTR finds applications in various electronic devices that require a stable and regulated power supply. Some common application fields include:

1. Consumer Electronics: Used in portable devices such as smartphones, tablets, and digital cameras to provide a stable voltage for powering the internal circuitry.
2. Automotive Electronics: Employed in automotive systems like infotainment systems, navigation units, and engine control modules to ensure reliable voltage regulation.
3. Industrial Control Systems: Utilized in industrial automation equipment, motor drives, and power supplies to maintain consistent voltage levels.
4. Telecommunications: Integrated into communication devices, routers, and network switches to regulate the voltage supply for reliable operation.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1763-3.3: Offers lower dropout voltage and higher output current capability.
3. TPS79633: Provides enhanced thermal performance and lower quiescent current.

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

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