ON Semiconductor LP2950ACZ-3.3RA Voltage Regulator

The LP2950ACZ-3.3RA is a high-performance, low-power voltage regulator from ON Semiconductor, designed to offer a stable and reliable power supply for a wide range of applications. This linear regulator provides a fixed output voltage of 3.3V with an accuracy of ±0.5% at 100mA load and ±1% over the full temperature range. Its ability to maintain a consistent voltage level makes it an ideal choice for sensitive electronic devices.

With a low dropout voltage and a low quiescent current, the LP2950ACZ-3.3RA is particularly suited for battery-operated equipment, where energy efficiency is paramount. The regulator features a very low ground current (typically 75 µA), which further enhances its suitability for portable applications. Additionally, the device incorporates a thermal shutdown mechanism and current limiting to protect against over-current and over-temperature conditions, ensuring the safety and longevity of both the regulator and the system it is a part of.

The LP2950ACZ-3.3RA comes in a TO-92 package, which is widely used and easy to integrate into various circuit designs. Its compact size allows for flexibility in PCB layout and can be beneficial in space-constrained applications. The device is also characterized by its ease of use, requiring only two external capacitors for stability, one on the input and one on the output.

Key features of the LP2950ACZ-3.3RA include:

• Fixed output voltage: 3.3V
• Output voltage accuracy: ±0.5% at 100mA load
• Low dropout voltage
• Low quiescent current: 75 µA (typical)
• Thermal shutdown and current limit protection
• TO-92 package for easy integration

This voltage regulator is commonly used in applications such as microcontrollers, reference voltage sources, portable electronics, and other digital and analog circuits that require a stable power supply. Its reliability and performance make the LP2950ACZ-3.3RA a preferred choice for designers looking to enhance the efficiency and robustness of their systems.