Infineon Technologies
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IRU3138CSTRPBF
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IRU3138CSTRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: TO-263-5 (D2PAK-5)

Essence: The IRU3138CSTRPBF is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The IRU3138CSTRPBF is typically sold in reels containing 250 units.

Specifications

  • Input Voltage Range: 2.5V - 20V
  • Output Voltage Range: 0.8V - 18V
  • Maximum Output Current: 3A
  • Dropout Voltage: 300mV @ 3A
  • Quiescent Current: 120µA
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU3138CSTRPBF has the following pin configuration:

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

Functional Features

  • High Efficiency: The IRU3138CSTRPBF offers high efficiency, minimizing power loss and maximizing battery life.
  • Low Dropout Voltage: With a low dropout voltage of 300mV at 3A, the IC can maintain a stable output voltage 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 an external resistor divider network.
  • Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
  • Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Wide input and output voltage range

Disadvantages: - Dropout voltage may limit its use in low voltage applications - Limited maximum output current (3A)

Working Principles

The IRU3138CSTRPBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance and maintain a stable output voltage. The enable pin (EN) allows the user to control the regulator's operation.

Detailed Application Field Plans

The IRU3138CSTRPBF can be used in various applications, including: 1. Power supplies for microcontrollers and other digital circuits 2. Battery-powered devices 3. Automotive electronics 4. Industrial control systems 5. Communication equipment

Detailed and Complete Alternative Models

Some alternative models to the IRU3138CSTRPBF include: - LM317: Adjustable Voltage Regulator - LT1086: Low Dropout Regulator - TPS7A4700: High-Voltage, Ultra-Low IQ, Low-Dropout Regulator - ADP3339: Ultralow Noise, High PSRR, Fast Transient Response LDO Regulator

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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Énumérez 10 questions et réponses courantes liées à l'application de IRU3138CSTRPBF dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of IRU3138CSTRPBF in technical solutions:

  1. Question: What is the IRU3138CSTRPBF?
    Answer: The IRU3138CSTRPBF is a voltage regulator IC (integrated circuit) used for power management in various electronic devices.

  2. Question: What is the input voltage range supported by the IRU3138CSTRPBF?
    Answer: The IRU3138CSTRPBF supports an input voltage range from 4.5V to 24V.

  3. Question: What is the output voltage range provided by the IRU3138CSTRPBF?
    Answer: The IRU3138CSTRPBF can provide an adjustable output voltage range from 0.8V to 5.5V.

  4. Question: What is the maximum output current capability of the IRU3138CSTRPBF?
    Answer: The IRU3138CSTRPBF can deliver a maximum output current of 3A.

  5. Question: Is the IRU3138CSTRPBF suitable for battery-powered applications?
    Answer: Yes, the IRU3138CSTRPBF is suitable for battery-powered applications as it has low quiescent current and high efficiency.

  6. Question: Does the IRU3138CSTRPBF have built-in protection features?
    Answer: Yes, the IRU3138CSTRPBF includes overcurrent protection, thermal shutdown, and undervoltage lockout features.

  7. Question: Can the IRU3138CSTRPBF be used in automotive applications?
    Answer: Yes, the IRU3138CSTRPBF is designed to meet automotive requirements and can be used in automotive applications.

  8. Question: What is the operating temperature range of the IRU3138CSTRPBF?
    Answer: The IRU3138CSTRPBF can operate within a temperature range of -40°C to 125°C.

  9. Question: Does the IRU3138CSTRPBF require any external components for operation?
    Answer: Yes, the IRU3138CSTRPBF requires a few external components such as input and output capacitors for stable operation.

  10. Question: Can the IRU3138CSTRPBF be used in high-frequency switching applications?
    Answer: Yes, the IRU3138CSTRPBF is designed for high-frequency operation and can be used in such applications.

Please note that these answers are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and consult with technical experts for accurate information.