onsemi

LP2951ACN-3.3

LP2951ACN-3.3 Description

The LP2951ACN-3.3 is a fixed output linear voltage regulator designed by onsemi, offering a stable 3.3V output voltage with a maximum output current of 100mA. This regulator is housed in an 8-pin DIP package, making it suitable for through-hole mounting. With a maximum input voltage of 30V, the LP2951ACN-3.3 provides a wide input voltage range, ensuring compatibility with various power supply sources. The regulator features a low dropout voltage of 0.45V at 100mA, which enhances efficiency and reduces power dissipation, especially in applications where the input-to-output voltage difference is minimal. The LP2951ACN-3.3 also includes over-current and over-temperature protection, safeguarding the device and connected circuits from potential damage. Despite its small quiescent current of 120 µA, the regulator maintains high performance, making it ideal for low-power applications. Although this product is now obsolete, it remains a reliable choice for legacy systems and specific applications where its unique features are required.

LP2951ACN-3.3 Features

• Fixed Output Voltage: Provides a stable 3.3V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: Supports input voltages up to 30V, offering flexibility in power source selection.
• Low Dropout Voltage: With a maximum dropout voltage of 0.45V at 100mA, the regulator operates efficiently even with minimal input-to-output voltage differences.
• Over-Current and Over-Temperature Protection: Built-in protection features safeguard the regulator and connected circuits from damage due to excessive current or temperature.
• Low Quiescent Current: A quiescent current of 120 µA ensures minimal power consumption during operation, making it suitable for low-power applications.
• Through-Hole Mounting: The 8-pin DIP package allows for easy integration into through-hole PCB designs.
• Moisture Sensitivity Level 1: The unlimited moisture sensitivity level ensures the device can be stored and handled without special precautions.

LP2951ACN-3.3 Applications

The LP2951ACN-3.3 is well-suited for a variety of applications where a stable 3.3V supply is required. Its low dropout voltage and low quiescent current make it ideal for battery-powered devices and portable electronics, where efficiency and power conservation are critical. The regulator's over-current and over-temperature protection features make it a reliable choice for sensitive electronic circuits, ensuring safe operation under varying load conditions. Specific use cases include:

• Battery-Powered Devices: Ideal for applications such as handheld devices, portable instruments, and remote sensors where battery life and efficiency are paramount.
• Low-Power Systems: Suitable for microcontroller-based systems, embedded devices, and IoT applications that require minimal power consumption.
• Industrial Control Systems: Can be used in control modules and monitoring systems where a stable and efficient power supply is essential.
• Medical Devices: Applicable in medical equipment where reliable power supply and protection features are crucial for safe operation.

Conclusion of LP2951ACN-3.3

The LP2951ACN-3.3 is a robust and reliable linear voltage regulator that offers a stable 3.3V output with a maximum current of 100mA. Its low dropout voltage and low quiescent current make it an efficient choice for low-power applications, while its over-current and over-temperature protection features ensure safe and reliable operation. Although now obsolete, the LP2951ACN-3.3 remains a viable option for specific applications and legacy systems where its unique features are required. Its through-hole mounting and wide input voltage range further enhance its versatility and ease of integration into various electronic designs.