LM1117MPX-5.0/NOPB PMIC - Линейные стабилизаторы напряжения от Texas Instruments

The LM1117MPX-5.0/NOPB is a low dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 5.0V with a maximum output current of 800mA. This device is particularly useful in applications where space is limited and efficiency is crucial, such as in portable devices, battery-powered equipment, and various consumer electronics.

Key Features:

1. Output Voltage: The LM1117MPX-5.0/NOPB provides a fixed output voltage of 5.0V, making it suitable for powering microcontrollers, sensors, and other digital circuits that require a stable voltage supply.

2. Dropout Voltage: The regulator has a low dropout voltage, typically around 1.2V at full load, which allows it to maintain regulation even when the input voltage is only slightly above the output voltage. This feature is particularly beneficial in battery-operated devices where maximizing battery life is essential.

3. Current Capability: It can deliver up to 800mA of output current, making it versatile for a range of applications, from low-power devices to more demanding loads.

4. Thermal Protection: The LM1117MPX-5.0/NOPB includes built-in thermal shutdown protection, which prevents the device from overheating and ensures reliable operation under varying load conditions.

5. Short-Circuit Protection: This regulator also features short-circuit protection, which safeguards the device and the connected load in the event of a fault condition.

6. Package Type: The LM1117MPX-5.0/NOPB is available in a TO-220 package, which provides good thermal performance and is easy to handle in PCB designs. The package is designed for efficient heat dissipation, which is crucial for maintaining performance under load.

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. Input Voltage Range: The LM1117MPX-5.0/NOPB can accept input voltages from 4.75V to 15V, providing flexibility in various power supply configurations.

9. Capacitor Requirements: For stable operation, the regulator requires input and output capacitors. Typically, a 10µF tantalum or aluminum electrolytic capacitor is recommended at the output to ensure stability and transient response.

Applications:

The LM1117MPX-5.0/NOPB is widely used in various applications, including:

• Power supplies for microcontrollers and digital circuits
• Battery-powered devices
• Portable electronics
• Automotive electronics
• Communication equipment
• Industrial control systems

Conclusion:

The LM1117MPX-5.0/NOPB from Texas Instruments is a reliable and efficient voltage regulator that meets the needs of modern electronic designs. Its combination of low dropout voltage, thermal protection, and robust performance makes it an excellent choice for a wide range of applications where a stable 5.0V output is required.