LP5907QMFX-2.8Q1

The LP5907QMFX-2.8Q1 is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 2.8V 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 LP5907 provides a fixed output voltage of 2.8V, making it suitable for powering various low-voltage digital circuits and components.

2. Low Dropout Voltage: The LDO has a low dropout voltage, typically around 300mV at full load, which allows it to maintain regulation even when the input voltage is close to the output voltage. This is particularly beneficial in battery-operated devices where the input voltage may drop as the battery discharges.

3. Quiescent Current: The device features a very low quiescent current, typically around 1.5µA, which is advantageous for applications requiring minimal power consumption during idle states.

4. Power Supply Rejection Ratio (PSRR): The LP5907 offers a high PSRR, which helps to filter out noise from the input supply, ensuring a clean output voltage. This is crucial for sensitive analog and digital circuits.

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

6. Compact Package: The LP5907QMFX-2.8Q1 is available in a small, space-saving package (QFN-16), making it suitable for applications with limited board space.

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, wireless communication equipment, and other battery-operated systems where efficient power management is essential.

Pin Configuration:

The LP5907 features a standard pin configuration that includes input and output pins, a ground pin, and additional pins for enable and bypass capacitors. The enable pin allows for easy control of the regulator, enabling or disabling the output as needed.

Conclusion:

The LP5907QMFX-2.8Q1 from Texas Instruments is an efficient and reliable LDO voltage regulator that is ideal for low-power applications requiring a stable 2.8V output. Its low dropout voltage, minimal quiescent current, and compact design make it a popular choice for engineers designing battery-operated devices and other power-sensitive applications.