The TPS79428DCQR from Texas Instruments is a highly efficient, low-dropout (LDO) voltage regulator designed to deliver a fixed output of 2.8V. With an input voltage range of 2.7V to 5.5V, this regulator is capable of supplying 250mA of output current, making it ideal for portable and battery-powered applications where energy efficiency is crucial.

Key Features

• High Accuracy: The TPS79428DCQR offers an impressive output voltage accuracy of ±1%, ensuring reliable and consistent performance for sensitive electronic circuits.
• Low Dropout Voltage: Featuring a low dropout voltage of just 85mV at full load, this LDO helps maintain regulation even when the supply voltage is close to the output voltage, minimizing power loss and improving system efficiency.
• Low Quiescent Current: With a low quiescent current of 17µA in the light-load condition, the device significantly extends battery life, which is particularly advantageous for portable devices.
• Fast Transient Response: The TPS79428DCQR is designed to provide a fast transient response, which is essential for maintaining voltage stability during sudden changes in load.
• Thermal Shutdown and Overcurrent Protection: Built-in safety features such as thermal shutdown and overcurrent protection safeguard the device and the system from damage due to excessive temperatures or current.

Applications

Due to its low power consumption and stable output, the TPS79428DCQR is suitable for a wide range of applications, including:

• Mobile Phones
• Digital Cameras
• Personal Digital Assistants (PDAs)
• Portable Media Players
• Wireless LAN and Bluetooth™ Devices
• GPS Receivers

Package and Quality

The TPS79428DCQR is offered in a compact SOT-223 package, which is RoHS compliant and designed for surface-mount technology (SMT), facilitating integration into a variety of circuit designs. Texas Instruments is known for its commitment to quality, and this product is no exception, ensuring reliability and performance for the most demanding applications.