TPS79933DDCT - Low-Dropout Regulator from Texas Instruments

The TPS79933DDCT is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a stable and precise output voltage with a low drop across a wide range of input voltages and load conditions. This device is particularly suitable for sensitive applications requiring a clean power supply, such as RF and analog circuits, portable devices, and microprocessor/microcontroller systems.

Key Features

• Output Voltage: The TPS79933DDCT provides a fixed output voltage of 3.3V, which is ideal for powering 3.3V logic and analog circuits.
• High Accuracy: This regulator offers excellent regulation with an accuracy of 2% over temperature, line, and load variations, ensuring reliable performance in diverse operating conditions.
• Low Dropout: With a very low dropout voltage of typically 40mV at 200mA load, it is highly efficient and can operate close to the input voltage, minimizing power loss and heat dissipation.
• Low Quiescent Current: The TPS79933DDCT features a low quiescent current of typically 40μA, making it an excellent choice for battery-powered applications where power conservation is crucial.
• Thermal Shutdown and Overcurrent Protection: Built-in safety features include thermal shutdown and overcurrent protection, enhancing the reliability and longevity of both the regulator and the system it powers.
• Packaging: The device comes in a small, 5-pin SOT-23 package, which is suitable for space-constrained applications.

Applications

The TPS79933DDCT is versatile and can be used in a variety of applications, including:

• Portable and battery-powered equipment
• Wireless communication devices
• Power supplies for DSPs, MCUs, and FPGAs
• Medical devices
• Analog and RF circuits

With its combination of features and protections, the TPS79933DDCT from Texas Instruments is an excellent choice for designers looking for a reliable LDO voltage regulator that can deliver consistent performance while maintaining energy efficiency.