Product Overview: TPS79433 by Texas Instruments

The TPS79433 from Texas Instruments is a high-precision, low-dropout voltage regulator that delivers a fixed output voltage of 3.3V with an impressive accuracy. This regulator is designed to provide up to 250 mA of output current, which makes it an ideal choice for a wide range of applications, including portable and battery-powered devices where power efficiency is crucial.

Key Features

• Low Dropout Voltage: The TPS79433 offers a very low dropout voltage, ensuring efficient operation even when the input voltage is close to the output voltage, thus extending battery life in portable applications.
• High Accuracy: With an output voltage accuracy of 2%, this regulator provides stable and reliable power, which is essential for sensitive electronics that require precise voltage levels.
• Low Quiescent Current: The device features a low quiescent current of 17 µA (typical), which significantly reduces power consumption when in standby mode.
• Fast Transient Response: Its excellent transient response capabilities help maintain stable output voltage during sudden changes in load, protecting downstream components.
• Thermal Shutdown and Overcurrent Protection: Built-in safety features protect the regulator and the application from damage due to overheating and excessive current draw.

Applications

The TPS79433 is versatile and can be used in various applications, including:

• Mobile Phones
• Personal Digital Assistants (PDAs)
• Portable Media Players
• Wireless LAN and Bluetooth® Modules
• GPS Devices

Package and Availability

This voltage regulator is available in multiple package options, including the small SOT-23, which is suitable for space-constrained applications. The TPS79433 is also available in a range of temperature grades to suit different environmental requirements. For more information on purchasing and availability, please visit the Texas Instruments website or contact an authorized distributor.