LP2985AIM5X-1.8/NOPB

The LP2985AIM5X-1.8/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 1.8V with a maximum output current of 150mA. This device is particularly useful in applications where space is limited, as it comes in a compact 5-pin SOT-23 package, making it suitable for portable and battery-powered devices.

Key Features:

1. Output Voltage: The LP2985AIM5X-1.8/NOPB provides a fixed output voltage of 1.8V, which is ideal for powering low-voltage digital circuits and microcontrollers.

2. Low Dropout Voltage: The LDO features a low dropout voltage of approximately 0.1V at 150mA, allowing it to maintain regulation even when the input voltage is close to the output voltage. This is particularly beneficial in battery-operated devices where maximizing battery life is crucial.

3. Quiescent Current: The device has a low quiescent current, typically around 30µA, which helps to extend battery life in portable applications.

4. Power Supply Rejection Ratio (PSRR): The LP2985 offers a high PSRR, which ensures that variations in the input voltage do not significantly affect the output voltage, providing a clean and stable power supply to sensitive components.

5. Thermal Protection: The regulator includes built-in thermal shutdown protection, which prevents damage to the device in case of overheating.

6. Short-Circuit Protection: It also features short-circuit protection, ensuring that the device can withstand fault conditions without sustaining damage.

7. Operating Temperature Range: The LP2985AIM5X-1.8/NOPB operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environmental conditions.

8. Lead-Free and RoHS Compliant: The device is lead-free and complies with RoHS standards, making it an environmentally friendly choice for modern electronic designs.

Applications:

The LP2985AIM5X-1.8/NOPB is commonly used in a variety of applications, including:

• Portable electronics
• Battery-powered devices
• Microcontroller power supplies
• RF and wireless applications
• Automotive electronics
• Consumer electronics

Pin Configuration:

The device is housed in a 5-pin SOT-23 package, with the following pin configuration:

1. Input (Vin): The pin where the input voltage is applied.
2. Ground (GND): The common ground pin.
3. Output (Vout): The regulated output voltage pin.
4. Control (NC): Not connected; typically left floating.
5. Enable (EN): A pin that can be used to enable or disable the regulator.

Conclusion:

The LP2985AIM5X-1.8/NOPB from Texas Instruments is a versatile and efficient LDO voltage regulator that provides a reliable 1.8V output with low dropout and quiescent current. Its compact size and robust features make it an excellent choice for a wide range of electronic applications, particularly in portable and battery-operated devices.