TPS78228DRVRG4 PMIC - Линейные стабилизаторы напряжения от Texas Instruments

The TPS78228DRVRG4 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage with high efficiency and low noise, making it suitable for a variety of applications, including portable devices, battery-powered equipment, and other electronic systems requiring precise voltage regulation.

Key Features:

1. Output Voltage: The TPS78228 is available in fixed output voltage options, typically around 2.8V, which is ideal for powering low-voltage digital circuits.

2. Input Voltage Range: The device can accept a wide input voltage range, typically from 2.5V to 6.5V, allowing it to be used in various power supply configurations.

3. Low Dropout Voltage: The LDO features a low dropout voltage, typically around 200mV at full load, which means it can 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.

4. Output Current: The TPS78228 can deliver a maximum output current of up to 200mA, making it suitable for powering small loads.

5. Quiescent Current: It has a low quiescent current, which helps to extend battery life in portable applications by minimizing power consumption when the device is not actively driving a load.

6. Power Supply Rejection Ratio (PSRR): The device exhibits a high PSRR, which means it can effectively filter out noise from the input supply, providing a clean output voltage.

7. Thermal Protection: The TPS78228 includes thermal shutdown features to protect the device from overheating, ensuring reliable operation under varying load conditions.

8. Package Type: The TPS78228DRVRG4 is offered in a small, thermally efficient package (typically a 5-pin SOT-23), which is advantageous for space-constrained applications.

9. Applications: Common applications include powering microcontrollers, sensors, and other low-voltage digital circuits, as well as use in portable devices, automotive electronics, and industrial equipment.

Electrical Characteristics:

• Operating Temperature Range: The device is designed to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for various environmental conditions.
• Output Voltage Tolerance: The output voltage is typically specified with a tolerance, ensuring that it remains within acceptable limits under different load and temperature conditions.

Conclusion:

The TPS78228DRVRG4 from Texas Instruments is a versatile and efficient LDO voltage regulator that provides reliable performance for low-voltage applications. Its combination of low dropout voltage, low quiescent current, and high PSRR makes it an excellent choice for battery-powered and portable devices, ensuring stable operation and extended battery life.