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PQ05RR11

PQ05RR11 Description

The PQ05RR11 is a linear regulator IC designed by Sharp Microelectronics, offering a fixed output voltage of 5V and a maximum output current of 1A. This device is housed in a TO220-4 package, making it suitable for through-hole mounting. Despite its obsolescence, the PQ05RR11 remains a reliable choice for applications requiring a stable power supply with minimal noise and high performance. It features a maximum input voltage of 35V and a quiescent current of 10 mA, ensuring efficient power management. The regulator includes protection features such as over-current and over-temperature protection, enhancing its reliability and longevity. Additionally, it boasts a power supply rejection ratio (PSRR) of 55dB at 120Hz, which helps in maintaining a clean output voltage under varying input conditions. The PQ05RR11 also includes a reset control feature, providing an extra layer of control for system stability.

PQ05RR11 Features

• Output Type: Fixed, ensuring a stable 5V output.
• Input Voltage Range: Up to 35V, providing flexibility in power source selection.
• Output Current: 1A, suitable for a wide range of low to medium power applications.
• Regulator Count: Single regulator, simplifying design and reducing component count.
• Output Configuration: Positive, ideal for standard power supply requirements.
• Quiescent Current: Low at 10 mA, contributing to high efficiency.
• PSRR: 55dB at 120Hz, ensuring minimal noise and high performance.
• Protection Features: Over-current and over-temperature protection, enhancing reliability.
• Control Features: Reset functionality, providing additional control options.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for various environmental conditions.
• Mounting Type: Through-hole, ensuring robust mechanical stability.
• Package: Tube, facilitating easy handling and storage.
• Product Status: Obsolete, but still available for legacy systems and specific applications.

PQ05RR11 Applications

The PQ05RR11 is well-suited for a variety of applications where a reliable and stable power supply is essential. Its fixed 5V output and 1A current capability make it ideal for powering microcontrollers, sensors, and other low-power electronics. The over-current and over-temperature protection features ensure that the regulator can handle transient conditions without failure, making it suitable for industrial and automotive environments. The reset control feature is particularly useful in systems where power sequencing and controlled startup are required. Additionally, its high PSRR and low quiescent current make it suitable for applications where noise sensitivity and power efficiency are critical, such as in precision measurement equipment and portable devices.

Conclusion of PQ05RR11

The PQ05RR11, despite being obsolete, remains a robust and reliable choice for applications requiring a stable 5V power supply with a maximum output current of 1A. Its high PSRR, low quiescent current, and protection features make it a versatile and efficient regulator. The inclusion of a reset control feature adds an extra layer of functionality, making it suitable for systems that require controlled power sequencing. While newer alternatives may offer additional features and improved performance, the PQ05RR11 continues to serve well in legacy systems and specific applications where its unique combination of reliability, efficiency, and control features are highly valued.