TPS79433DGNR Voltage Regulator by Texas Instruments

The TPS79433DGNR is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a continuous 250 mA output current with a low dropout voltage. This component is an ideal choice for sensitive analog loads that require a low noise, high accuracy power supply.

Key Features

• Output Voltage: The TPS79433DGNR provides a fixed output voltage of 3.3V, which is suitable for a wide range of applications, including powering microcontrollers, analog circuits, and digital interfaces.
• Low Dropout: With a dropout voltage as low as 17 mV at 250 mA, this LDO ensures efficient operation even when the input voltage is close to the output voltage, making it ideal for battery-powered devices.
• Low Noise: This regulator features an exceptionally low output noise of 28 µVRMS, which is critical for RF and precision analog applications where noise can impact performance.
• High PSRR: The device offers a high power supply rejection ratio (PSRR) of 70 dB at 1 kHz, which helps in maintaining output voltage stability against variations in the input supply.
• Adjustable Output: Although the TPS79433DGNR is designed to provide a fixed 3.3V output, it also supports an adjustable output voltage version that allows users to set the desired voltage with external resistors.
• Thermal Protection: It includes built-in thermal shutdown and overcurrent protection features to safeguard the device and the load from damage due to excessive power dissipation or load conditions.

Applications

The TPS79433DGNR is versatile and can be used in a variety of applications, including:

• Portable and battery-powered equipment
• Wireless communication systems
• Medical instrumentation
• Audio applications
• Data acquisition systems

Package and Quality

The device is offered in a compact 8-pin MSOP PowerPAD™ package, which is designed to enhance thermal performance. The TPS79433DGNR is also characterized for operation over a wide temperature range of –40°C to 125°C, ensuring reliability across various environmental conditions.

With its combination of features, the TPS79433DGNR from Texas Instruments stands out as a robust power management solution for applications demanding high precision and low noise power supply.