IRU3137CSTR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: CSTR (Compact Surface Mount Technology Resistor)

Essence: The IRU3137CSTR is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The IRU3137CSTR is available in a compact surface mount package. The quantity per package may vary depending on the manufacturer.

Specifications

• Input Voltage Range: 2.5V - 16V
• Output Voltage Range: 0.8V - 12V
• Output Current: Up to 3A
• Dropout Voltage: 300mV at 3A
• Line Regulation: ±1%
• Load Regulation: ±1%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU3137CSTR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. FB (Feedback)
4. EN (Enable)
5. VOUT (Output Voltage)

Functional Features

• High Efficiency: The IRU3137CSTR utilizes advanced circuitry to achieve high efficiency, minimizing power loss.
• Low Dropout Voltage: The low dropout voltage ensures that the output voltage remains stable even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard the connected devices from excessive current flow.
• Thermal Shutdown Protection: In case of excessive temperature rise, the thermal shutdown feature activates to prevent damage to the IC.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Compact package size

Disadvantages: - Limited input voltage range (2.5V - 16V) - Dropout voltage of 300mV at 3A may not be suitable for some applications requiring lower dropout voltages.

Working Principles

The IRU3137CSTR operates by regulating the input voltage to provide a stable output voltage. It uses a feedback mechanism to continuously monitor the output voltage and adjust the internal circuitry to maintain the desired voltage level. The IC employs various control techniques to achieve high efficiency and minimize power dissipation.

Detailed Application Field Plans

The IRU3137CSTR is commonly used in various electronic devices that require a regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. Computer Systems: Laptops, desktops, servers.
3. Consumer Electronics: Televisions, audio systems, gaming consoles.
4. Automotive Electronics: Infotainment systems, navigation systems, lighting controls.
5. Industrial Equipment: Test and measurement instruments, automation systems, power supplies.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar features.
2. LT1083: High current, adjustable linear regulator.
3. TPS7A47: Ultra-low noise, high PSRR voltage regulator.
4. LM1117: Low dropout voltage regulator with fixed output voltage options.
5. MAX603: Micropower, low dropout voltage regulator.

These alternative models offer similar functionality and can be considered as alternatives to the IRU3137CSTR based on specific requirements and application needs.

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