Product Overview: TPS79401DGNR from Texas Instruments

The TPS79401DGNR is a high-quality voltage regulator component manufactured by Texas Instruments, designed to cater to a wide array of power management requirements in electronic circuits. This device is part of the TPS794xx family of low-dropout (LDO) linear regulators that offer excellent AC performance with very low ground current.

Key Features

• High PSRR: The TPS79401DGNR boasts a high power supply rejection ratio (PSRR) of 70 dB at 1 kHz, making it an ideal choice for noise-sensitive applications where a clean voltage supply is critical.
• Low Dropout: Its low dropout voltage allows the regulator to continue delivering a stable output even when the input-to-output voltage differential is minimal, enhancing the efficiency of the overall system.
• Adjustable Output: With an output voltage range that can be adjusted from 1.2 V to 5.5 V via external resistors, this regulator provides the flexibility needed to cater to various design requirements.
• Low Quiescent Current: The device features a low quiescent current of 17 µA (typical), which is particularly beneficial for battery-powered devices, helping to extend battery life.
• Thermal and Overcurrent Protection: The TPS79401DGNR includes built-in thermal shutdown and overcurrent protection features to safeguard the device and the system against excessive temperatures and current loads.

Applications

This versatile LDO is suitable for a multitude of applications, including:

• Radios and GPS systems
• Portable and battery-powered equipment
• Post-regulation for switching supplies
• High-efficiency linear power supplies
• Analog and digital signal processing

Package and Quality

The TPS79401DGNR comes in an MSOP-8 (DGN) package that is compact and suitable for space-constrained applications. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting high standards of performance and reliability.

Conclusion

With its combination of high PSRR, low dropout, adjustable output, and protective features, the TPS79401DGNR from Texas Instruments stands out as a robust and reliable component for sophisticated power management solutions. Its versatility makes it an excellent choice for designers looking to improve the performance and efficiency of their electronic systems.