onsemi

LM2931AZ-5.0RA

LM2931AZ-5.0RA Description

The LM2931AZ-5.0RA is a fixed output linear regulator designed for applications requiring a stable 5V output voltage with a maximum output current of 100mA. Manufactured by onsemi, this regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a Through Hole TO92-3 package. Despite being marked as obsolete, the LM2931AZ-5.0RA remains a reliable choice for various low-power applications due to its robust design and performance characteristics.

LM2931AZ-5.0RA Features

The LM2931AZ-5.0RA offers several key features that make it a standout component in its class:

• Fixed Output Voltage: The regulator provides a stable 5V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 26V, this regulator can handle a wide range of input voltages, making it versatile for different power sources.
• Low Dropout Voltage: The maximum dropout voltage is 0.6V at 100mA, which means the regulator can maintain its output voltage even when the input voltage is close to the output voltage. This is particularly useful in applications where the input voltage might drop significantly.
• Low Quiescent Current: The regulator has a low quiescent current of 1mA, which minimizes power consumption when the regulator is not actively supplying current to the load.
• High Power Supply Rejection Ratio (PSRR): The PSRR of 90dB at 120Hz ensures that the regulator can effectively filter out noise and ripple from the input power supply, resulting in a cleaner output voltage.
• Protection Features: The regulator includes over-current and over-temperature protection, safeguarding both the regulator and the connected circuitry from damage due to excessive current or temperature.
• Moisture Sensitivity Level: The MSL rating of 1 (Unlimited) indicates that the component is not sensitive to moisture, making it suitable for a variety of environmental conditions.
• Packaging: The LM2931AZ-5.0RA is available in a Tape & Reel (TR) package, which is ideal for automated assembly processes.

LM2931AZ-5.0RA Applications

The LM2931AZ-5.0RA is well-suited for a variety of applications where a stable 5V power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering low-power devices such as remote controls, small appliances, and portable electronic gadgets.
• Industrial Equipment: Suitable for applications in industrial settings where a reliable and stable power supply is crucial, such as in sensors and control systems.
• Automotive Electronics: Can be used in automotive applications where a stable 5V supply is needed for various electronic components.
• Medical Devices: Applicable in medical equipment that requires a stable power source, ensuring reliable operation and safety.
• Telecommunications: Useful in telecom applications where a stable power supply is necessary for maintaining communication equipment.

Conclusion of LM2931AZ-5.0RA

The LM2931AZ-5.0RA, despite being marked as obsolete, remains a robust and reliable linear regulator for applications requiring a stable 5V output. Its low dropout voltage, high PSRR, and protection features make it a superior choice over similar models. The regulator's versatility in handling a wide range of input voltages and its low quiescent current further enhance its appeal. Whether used in consumer electronics, industrial equipment, or medical devices, the LM2931AZ-5.0RA provides a dependable power solution with minimal power consumption and high performance.