TPS79930DDCT

The TPS79930DDCT is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage with high accuracy and low noise, making it suitable for a variety of applications, including portable devices, battery-powered equipment, and other sensitive electronic circuits.

Key Features:

1. Output Voltage: The TPS79930DDCT typically provides a fixed output voltage of 3.0V, which is ideal for powering digital circuits and microcontrollers.

2. Low Dropout Voltage: The device features a low dropout voltage of approximately 200 mV at a load current of 300 mA. This characteristic allows it to maintain regulation even when the input voltage is close to the output voltage, which is particularly useful in battery-operated applications.

3. Output Current: The regulator can deliver up to 300 mA of output current, making it suitable for a range of applications that require moderate power levels.

4. High Power Supply Rejection Ratio (PSRR): The TPS79930DDCT exhibits excellent PSRR, which helps to minimize the impact of input voltage fluctuations on the output voltage, ensuring a clean and stable power supply.

5. Low Quiescent Current: With a quiescent current of only a few microamperes, the TPS79930DDCT is highly efficient, especially in battery-powered applications where power conservation is critical.

6. Thermal Protection: The device includes built-in thermal shutdown protection, which prevents damage due to overheating by shutting down the regulator if the junction temperature exceeds a certain threshold.

7. Small Package Size: The TPS79930DDCT is available in a compact DDC package, which is a 5-pin SOT-23 package. This small form factor is advantageous for space-constrained designs.

8. 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.

9. Capacitor Compatibility: The TPS79930DDCT is designed to work with a variety of output capacitors, including ceramic capacitors, which are commonly used in modern electronic designs.

Applications:

• Portable and handheld devices
• Battery-powered equipment
• Microcontroller power supplies
• RF and wireless applications
• Automotive electronics
• Industrial control systems

Conclusion:

The TPS79930DDCT from Texas Instruments is a versatile and efficient LDO voltage regulator that provides reliable performance in a compact package. Its low dropout voltage, high PSRR, and low quiescent current make it an excellent choice for applications requiring stable and efficient power management.