LP3982IMMX-1.8/NOPB

The LP3982IMMX-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 200mA. 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 LP3982 is fixed at 1.8V, making it suitable for powering low-voltage digital circuits and microcontrollers.

2. Low Dropout Voltage: The LDO has a low dropout voltage of approximately 300mV at full load, which allows it to maintain regulation even when the input voltage is close to the output voltage.

3. Quiescent Current: It features a low quiescent current of around 30µA, which is beneficial for applications where power efficiency is critical.

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

5. Thermal Protection: The LP3982 includes thermal shutdown protection, which prevents damage to the device in case of overheating.

6. Package Type: It is available in a small, space-saving package (typically a 5-pin SOT-23), making it suitable for compact designs.

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

8. Applications: Common applications include portable devices, battery-powered equipment, and any circuit requiring a stable 1.8V power supply.

Electrical Characteristics:

• Input Voltage Range: The LP3982 can accept a wide range of input voltages, typically from 2.5V to 16V.
• Output Current: It can deliver up to 200mA of output current, making it versatile for various applications.
• Load Regulation: The device provides excellent load regulation, ensuring that the output voltage remains stable under varying load conditions.

Conclusion:

The LP3982IMMX-1.8/NOPB from Texas Instruments is an efficient and reliable LDO voltage regulator ideal for low-power applications. Its combination of low dropout voltage, low quiescent current, and robust protection features make it a popular choice for designers looking to optimize power management in their electronic circuits.