L79L05ACZ-TR

The L79L05ACZ-TR is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It is designed to provide a stable output voltage of 5V with a maximum output current of 100mA. This device is particularly useful in applications where space is limited and efficiency is crucial, such as in portable electronics, battery-powered devices, and various consumer electronics.

Key Features:

1. Output Voltage: The L79L05ACZ-TR provides a fixed output voltage of 5V, making it suitable for powering microcontrollers, sensors, and other low-power devices.

2. Low Dropout Voltage: The LDO features a low dropout voltage, typically around 0.1V at 100mA, which allows it to maintain regulation even when the input voltage is only slightly higher than the output voltage. This is particularly beneficial in battery-operated devices where maximizing battery life is essential.

3. Current Capability: With a maximum output current of 100mA, the L79L05ACZ-TR can efficiently power a variety of low-power applications.

4. Thermal Protection: The device includes built-in thermal shutdown protection, which prevents damage due to overheating. This feature is crucial for maintaining reliability in various operating conditions.

5. Short-Circuit Protection: The LDO is designed with short-circuit protection, ensuring that it can withstand fault conditions without sustaining damage.

6. Package Type: The L79L05ACZ-TR is available in a compact TO-220 package, which facilitates easy mounting on PCBs and helps in heat dissipation.

7. Operating Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

8. Low Quiescent Current: The L79L05ACZ-TR features low quiescent current, which is advantageous for battery-powered applications, as it helps to extend battery life.

Applications:

• Consumer Electronics: Ideal for powering devices such as remote controls, portable audio devices, and handheld gadgets.
• Microcontroller Power Supply: Suitable for providing stable voltage to microcontrollers and other digital circuits.
• Sensor Power Supply: Can be used to power various sensors in IoT applications.
• Battery-Powered Devices: Its low dropout voltage and low quiescent current make it an excellent choice for battery-operated systems.

Conclusion:

The L79L05ACZ-TR from STMicroelectronics is a versatile and reliable low-dropout voltage regulator that meets the needs of various low-power applications. Its combination of low dropout voltage, thermal and short-circuit protection, and compact packaging makes it an ideal choice for designers looking to enhance the performance and efficiency of their electronic systems.