IRU1117CP

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 - Wide input voltage range

Package: TO-220

Essence: The IRU1117CP is a low dropout voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The IRU1117CP is typically sold in reels or tubes, with quantities varying depending on the supplier.

Specifications

Input Voltage Range: 2.5V to 18V
Output Voltage Range: 1.25V to 16V
Dropout Voltage: 1.2V (typical)
Output Current: Up to 800mA
Quiescent Current: 120µA (typical)
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU1117CP has three pins:

Input (VIN): This pin is connected to the input voltage source.
Output (VOUT): This pin provides the regulated output voltage.
Ground (GND): This pin is connected to the ground reference.

Functional Features

Low Dropout Voltage: The IRU1117CP has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
High Output Current Capability: With an output current capability of up to 800mA, the IRU1117CP can power a wide range of electronic devices.
Thermal Shutdown Protection: The IC includes thermal shutdown protection, which prevents damage due to excessive temperature.
Short-Circuit Current Limit: The IRU1117CP has a built-in short-circuit current limit to protect the device and the connected circuitry.
Fast Transient Response: It provides a fast transient response, ensuring stability during sudden load changes.
Adjustable Output Voltage: The output voltage can be adjusted using external resistors, allowing flexibility in various applications.
Wide Input Voltage Range: The IC can operate with an input voltage range of 2.5V to 18V, making it suitable for a wide range of power supply sources.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - High output current capability allows for powering a variety of electronic devices. - Thermal shutdown protection prevents damage due to excessive temperature. - Fast transient response ensures stability during load changes. - Adjustable output voltage provides flexibility in different applications. - Wide input voltage range makes it compatible with various power supply sources.

Disadvantages: - Limited output current compared to some other voltage regulator ICs. - Higher quiescent current compared to certain low-power alternatives.

Working Principles

The IRU1117CP is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage. Any difference between the two voltages is amplified and used to control the pass transistor, adjusting its resistance to maintain a stable output voltage.

Detailed Application Field Plans

The IRU1117CP is commonly used in various applications, including but not limited to: - Power supplies for microcontrollers and digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to the IRU1117CP include: - LM1117: A popular voltage regulator IC with similar characteristics and package options. - LT1117: Another low dropout voltage regulator IC with adjustable output voltage. - TPS7A47: A high-performance, low-noise voltage regulator suitable for sensitive applications. - LDO50V: A low dropout voltage regulator designed for high-voltage applications.

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

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací IRU1117CP v technických řešeních

Sure! Here are 10 common questions and answers related to the application of IRU1117CP in technical solutions:

Q: What is the IRU1117CP? A: The IRU1117CP is a low dropout (LDO) voltage regulator IC that provides a regulated output voltage from an input voltage source.
Q: What is the maximum input voltage supported by the IRU1117CP? A: The IRU1117CP can handle a maximum input voltage of 20V.
Q: What is the typical output voltage range of the IRU1117CP? A: The IRU1117CP typically provides an output voltage range of 1.2V to 5.0V, depending on the specific variant.
Q: What is the maximum output current capability of the IRU1117CP? A: The IRU1117CP can deliver a maximum output current of 1A.
Q: Is the IRU1117CP suitable for battery-powered applications? A: Yes, the IRU1117CP is well-suited for battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Does the IRU1117CP require any external components for operation? A: Yes, the IRU1117CP requires input and output capacitors for stability and proper operation. Refer to the datasheet for recommended values.
Q: Can the IRU1117CP handle thermal overload conditions? A: Yes, the IRU1117CP has built-in thermal shutdown protection to prevent damage during excessive temperature conditions.
Q: What is the typical dropout voltage of the IRU1117CP? A: The typical dropout voltage of the IRU1117CP is around 0.6V at full load.
Q: Can the IRU1117CP be used in automotive applications? A: Yes, the IRU1117CP is suitable for automotive applications as it meets the necessary requirements for automotive-grade components.
Q: Are there any specific layout considerations for using the IRU1117CP? A: Yes, it is important to follow the recommended PCB layout guidelines provided in the datasheet to ensure proper thermal dissipation and minimize noise.

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