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IRU1117CY
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short circuit current limit - Fast transient response - Adjustable output voltage
Package: TO-220
Essence: The IRU1117CY is a voltage regulator IC that provides a stable and regulated output voltage for various electronic devices.
Packaging/Quantity: The IRU1117CY is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.
Specifications
- Input Voltage Range: 2.5V to 18V
- Output Voltage Range: 1.25V to 16V
- Output Current: Up to 1A
- Dropout Voltage: 1.2V (typical)
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The IRU1117CY has three pins:
- Input Pin (VIN): This pin is used to connect the input voltage source.
- Output Pin (VOUT): This pin provides the regulated output voltage.
- Ground Pin (GND): This pin is connected to the ground reference.
Functional Features
- Low Dropout Voltage: The IRU1117CY has a low dropout voltage, which allows it to regulate the output voltage even when the input voltage is close to the desired output voltage.
- High Output Current Capability: With a maximum output current of 1A, the IRU1117CY can power a wide range of electronic devices.
- Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, ensuring its reliability and longevity.
- Short Circuit Current Limit: In the event of a short circuit, the IRU1117CY limits the current to protect itself and the connected components.
- Fast Transient Response: The voltage regulator quickly responds to changes in load conditions, maintaining a stable output voltage.
- Adjustable Output Voltage: The output voltage can be adjusted within the specified range using external resistors.
Advantages and Disadvantages
Advantages: - Low dropout voltage ensures efficient regulation even with low input voltages. - High output current capability allows for powering various electronic devices. - Thermal shutdown protection enhances reliability. - Fast transient response ensures stability during load changes. - Adjustable output voltage provides flexibility in different applications.
Disadvantages: - Limited maximum output current compared to some other voltage regulators. - Requires external resistors for adjusting the output voltage.
Working Principles
The IRU1117CY is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass element.
Detailed Application Field Plans
The IRU1117CY can be used in various applications, including but not limited to: 1. Power supplies for microcontrollers and other digital circuits. 2. Battery-powered devices requiring stable voltage levels. 3. Automotive electronics. 4. Industrial control systems. 5. Audio amplifiers and preamplifiers. 6. LED lighting applications.
Detailed and Complete Alternative Models
Some alternative models to the IRU1117CY include: - LM1117: A popular voltage regulator IC with similar features and specifications. - LT1117: Another widely used voltage regulator IC known for its low dropout voltage. - ADP3339: A high-performance voltage regulator IC suitable for demanding applications. - TPS7A47: A precision voltage regulator IC with ultra-low noise and high PSRR.
These alternative models offer similar functionality and can be considered as substitutes depending on specific requirements and availability.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de IRU1117CY en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of IRU1117CY in technical solutions:
Q: What is the IRU1117CY? A: The IRU1117CY is a low dropout (LDO) voltage regulator IC that provides a fixed output voltage for various electronic applications.
Q: What is the input voltage range supported by the IRU1117CY? A: The IRU1117CY supports an input voltage range from 2.5V to 18V.
Q: What is the output voltage range of the IRU1117CY? A: The IRU1117CY provides a fixed output voltage, typically ranging from 1.2V to 5V, depending on the specific variant.
Q: What is the maximum output current capability of the IRU1117CY? A: The IRU1117CY can provide a maximum output current of up to 1A, making it suitable for powering a wide range of devices.
Q: Is the IRU1117CY a linear or switching regulator? A: The IRU1117CY is a linear regulator, which means it regulates the output voltage by dissipating excess power as heat.
Q: Does the IRU1117CY require any external components for operation? A: Yes, the IRU1117CY requires a minimum set of external components, including input and output capacitors, to ensure stability and proper operation.
Q: Can the IRU1117CY handle high temperatures? A: Yes, the IRU1117CY is designed to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environments.
Q: Can the IRU1117CY handle short-circuit conditions? A: Yes, the IRU1117CY has built-in protection features, including current limiting and thermal shutdown, to protect against short-circuits and overloads.
Q: Can I use the IRU1117CY in battery-powered applications? A: Yes, the low dropout voltage of the IRU1117CY makes it suitable for battery-powered applications where a stable output voltage is required.
Q: Are there any application notes or reference designs available for the IRU1117CY? A: Yes, the manufacturer provides application notes and reference designs that can help you understand and implement the IRU1117CY in your specific technical solution.
Please note that these answers are general and may vary depending on the specific requirements and datasheet of the IRU1117CY variant you are using.