LP5912-1.8DRVR

The LP5912-1.8DRVR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 1.8 volts with a maximum output current of 300 mA. This device is particularly useful in battery-powered applications due to its low quiescent current, which helps extend battery life.

Key Features:

1. Output Voltage: The LP5912-1.8DRVR provides a fixed output voltage of 1.8V, making it suitable for powering low-voltage digital circuits and microcontrollers.

2. Low Dropout Voltage: The LDO has a low dropout voltage, typically around 200 mV at full load, which allows it to maintain regulation even when the input voltage is close to the output voltage. This feature is crucial for applications where the input voltage may vary or be only slightly higher than the desired output.

3. Output Current: It can deliver up to 300 mA of output current, making it versatile for various applications, including portable devices, sensors, and other low-power electronics.

4. Quiescent Current: The device boasts a low quiescent current, typically around 30 µA, which is beneficial for battery-operated devices, as it minimizes power consumption when the device is in standby mode.

5. Thermal Protection: The LP5912-1.8DRVR includes built-in thermal shutdown protection, which prevents the device from overheating and ensures reliable operation under varying load conditions.

6. Package Type: It is available in a compact 5-pin SOT-23 package, which is ideal for space-constrained applications. The small footprint allows for easy integration into printed circuit boards (PCBs).

7. Power Supply Rejection Ratio (PSRR): The device features a high PSRR, which helps to filter out noise from the input supply, ensuring a clean and stable output voltage.

8. Operating Temperature Range: The LP5912-1.8DRVR operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for both consumer and industrial applications.

Applications:

• Battery-powered devices
• Portable electronics
• Microcontroller power supplies
• Sensor power supplies
• Low-voltage digital circuits

Conclusion:

The LP5912-1.8DRVR from Texas Instruments is a reliable and efficient LDO voltage regulator that provides a stable 1.8V output with low dropout and quiescent current. Its compact size and robust features make it an excellent choice for a variety of low-power applications, particularly in battery-operated devices where efficiency and space are critical.