LP5907MFX-1.5/NOPB

The LP5907MFX-1.5/NOPB is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 1.5V with a maximum output current of 200mA. This device is particularly useful in applications where low noise and high power supply rejection are critical, such as in battery-powered devices, RF applications, and precision analog circuits.

Key Features:

1. Output Voltage: The LP5907 is fixed at 1.5V, making it suitable for powering low-voltage digital circuits and components.

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, typically around 30µA, which helps extend battery life in portable applications.

4. Power Supply Rejection Ratio (PSRR): The device offers excellent PSRR, ensuring that variations in the input voltage do not significantly affect the output voltage, which is crucial for sensitive applications.

5. Thermal Protection: The LP5907 includes built-in thermal shutdown protection, which prevents damage to the device in case of overheating.

6. Compact Package: It is available in a small, thermally efficient package (SOT-23), making it suitable for space-constrained designs.

7. Operating Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C, ensuring reliability in various environmental conditions.

8. Output Capacitor: The LP5907 is stable with a wide range of output capacitors, including ceramic capacitors, which are often preferred for their low equivalent series resistance (ESR).

Applications:

• Battery-powered devices
• RF and wireless applications
• Portable electronics
• Precision analog circuits
• Microcontrollers and DSPs

Electrical Characteristics:

• Input Voltage Range: Typically from 2.3V to 5.5V
• Output Current: Up to 200mA
• Dropout Voltage: Approximately 300mV at 200mA
• PSRR: Typically 60dB at 1kHz

Conclusion:

The LP5907MFX-1.5/NOPB is a versatile and efficient LDO voltage regulator that provides a reliable 1.5V output with low dropout and quiescent current, making it an excellent choice for a variety of low-power applications. Its compact size and robust features make it a popular choice among engineers designing modern electronic devices.