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IRU1117CSTR
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IRU1117CSTR

Product Overview

Category

The IRU1117CSTR belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

  • High efficiency
  • Low dropout voltage
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection

Package

The IRU1117CSTR comes in a small surface-mount package, typically a TO-263-3 (D2PAK) package.

Essence

The essence of the IRU1117CSTR is its ability to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

The IRU1117CSTR is usually packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 2.5V to 18V
  • Output Voltage Range: 1.25V to 16V
  • Maximum Output Current: 1A
  • Dropout Voltage: 1.2V at 800mA
  • Line Regulation: ±0.2%
  • Load Regulation: ±0.4%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU1117CSTR has three pins:

  1. VIN (Pin 1): Input voltage pin.
  2. VOUT (Pin 2): Output voltage pin.
  3. GND (Pin 3): Ground pin.

Functional Features

  • Adjustable Output Voltage: The IRU1117CSTR allows users to adjust the output voltage within a specified range.
  • Overcurrent Protection: It incorporates overcurrent protection to prevent damage to the regulator and the connected circuitry.
  • Thermal Shutdown Protection: The device includes thermal shutdown protection, which shuts down the regulator if the temperature exceeds a certain threshold.
  • Low Dropout Voltage: The low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power dissipation.
  • Adjustable output voltage provides flexibility in various applications.
  • Overcurrent and thermal shutdown protection enhance reliability and safety.
  • Low dropout voltage enables stable operation even with low input voltages.

Disadvantages

  • Limited maximum output current of 1A may not be suitable for high-power applications.
  • Surface-mount package may require specialized equipment for soldering and replacement.

Working Principles

The IRU1117CSTR operates based on a linear voltage regulator principle. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. By comparing the output voltage with a reference voltage, the device adjusts the pass transistor to maintain a stable output voltage.

Detailed Application Field Plans

The IRU1117CSTR finds applications in various electronic devices and systems, including but not limited to: - Power supplies - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the IRU1117CSTR are: - LM1117: A popular fixed-output voltage regulator with similar characteristics. - LT1086: A high-current adjustable voltage regulator suitable for demanding applications. - TPS7A47: An ultra-low-noise LDO voltage regulator designed for sensitive audio and RF applications.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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技術ソリューションにおける IRU1117CSTR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of IRU1117CSTR in technical solutions:

  1. Q: What is the IRU1117CSTR? A: The IRU1117CSTR is a low dropout (LDO) voltage regulator IC that provides a stable output voltage for various electronic applications.

  2. Q: What is the input voltage range of the IRU1117CSTR? A: The IRU1117CSTR has an input voltage range of 2.5V to 18V.

  3. Q: What is the output voltage range of the IRU1117CSTR? A: The IRU1117CSTR can provide a fixed output voltage of 1.8V, 2.5V, 3.3V, or 5V, depending on the specific variant.

  4. Q: What is the maximum output current of the IRU1117CSTR? A: The IRU1117CSTR can deliver a maximum output current of 1A.

  5. Q: Can the IRU1117CSTR handle high temperatures? A: Yes, the IRU1117CSTR is designed to operate over a wide temperature range, typically from -40°C to +125°C.

  6. Q: Does the IRU1117CSTR require any external components for operation? A: Yes, the IRU1117CSTR requires a minimum set of external components, including input and output capacitors, for stable operation.

  7. Q: Is the IRU1117CSTR suitable for battery-powered applications? A: Yes, the IRU1117CSTR's low dropout voltage and low quiescent current make it suitable for battery-powered applications where efficiency is crucial.

  8. Q: Can the IRU1117CSTR handle short-circuit conditions? A: Yes, the IRU1117CSTR has built-in protection features, including current limit and thermal shutdown, to protect against short-circuit conditions.

  9. Q: Can I use the IRU1117CSTR in automotive applications? A: Yes, the IRU1117CSTR is qualified for automotive applications and meets the necessary standards and requirements.

  10. Q: Are there any application notes or reference designs available for the IRU1117CSTR? A: Yes, International Rectifier provides application notes and reference designs that can help you with the implementation of the IRU1117CSTR in your technical solutions.

Please note that these answers are general and may vary depending on specific design considerations and requirements. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for accurate information.