IRU1050CPTR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: 8-pin SOIC (Small Outline Integrated Circuit)

Essence: The IRU1050CPTR is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The IRU1050CPTR is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 300mV at 1A
• Output Current: Up to 1.5A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU1050CPTR 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 (active high)
• FB: Feedback pin
• NC: No connection

Functional Features

1. Low Dropout Voltage: The IRU1050CPTR has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.

2. High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic devices.

3. Adjustable Output Voltage: The output voltage can be adjusted within the range of 1.25V to 16V, providing flexibility for different applications.

4. Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, ensuring its reliability and longevity.

5. Overcurrent Protection: The IRU1050CPTR incorporates overcurrent protection, safeguarding the connected circuitry from excessive current flow.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Adjustable output voltage provides versatility - Thermal shutdown protection prevents overheating - Overcurrent protection safeguards connected circuitry

Disadvantages: - Limited output voltage range (1.25V to 16V) - Requires external components for proper operation

Working Principles

The IRU1050CPTR operates as a linear voltage regulator. It regulates the output voltage by comparing it with a reference voltage and adjusting the internal pass transistor accordingly. The feedback pin (FB) is used to monitor the output voltage and provide the necessary feedback for regulation.

When the input voltage (Vin) is higher than the desired output voltage (Vout), the internal pass transistor adjusts its resistance to maintain a stable output voltage. If the input voltage drops below the desired output voltage, the dropout voltage comes into play, allowing the regulator to still provide a regulated output voltage.

Detailed Application Field Plans

The IRU1050CPTR is commonly used in various electronic devices and systems, including:

1. Power Supplies: It can be used in power supply circuits to regulate the output voltage and ensure stable power delivery to other components.

2. Battery-Powered Devices: The low dropout voltage and high output current capability make it suitable for battery-powered devices, such as portable audio players and handheld instruments.

3. Automotive Electronics: The IC's wide operating temperature range and overcurrent protection make it suitable for automotive applications, such as in-car entertainment systems and lighting control modules.

4. Industrial Control Systems: It can be used in industrial control systems to regulate voltages for sensors, actuators, and other components.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar characteristics and pin configuration.
2. LT1083: A high-current linear voltage regulator with adjustable output voltage.
3. LM7805: A fixed 5V voltage regulator commonly used in electronic circuits.
4. LM1117: A low dropout voltage regulator available in various fixed output voltages.

These alternative models offer similar functionality and can be considered as alternatives to the IRU1050CPTR depending on specific requirements.

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