The TPS79928YZUR from Texas Instruments is a highly efficient, low-dropout linear regulator (LDO) that offers excellent AC performance with very low ground current. Ideal for power-sensitive applications, this device is designed to maintain stability and performance while delivering a continuous output current of up to 200mA.

Key Features

• High PSRR: With a high power supply rejection ratio (PSRR) of 65dB at 1kHz, the TPS79928YZUR ensures stable output voltage even in the presence of supply voltage fluctuations, making it suitable for noise-sensitive applications such as RF and precision analog circuits.
• Low Dropout Voltage: The device features a low dropout voltage, typically 40mV at a 200mA load, which allows for efficient operation even when the input-to-output voltage differential is minimal.
• Low Quiescent Current: The TPS79928YZUR is optimized for low quiescent current (typically 40µA), making it an excellent choice for battery-powered devices where extending battery life is crucial.
• Adjustable Output: It provides an adjustable output voltage range from 1.2V to 6.5V, allowing for versatile use across various applications.
• Thermal Protection: The device includes an internal thermal shutdown protection mechanism that protects the IC from overheating, ensuring long-term reliability.
• Stable with Low ESR Capacitors: The regulator is stable with ceramic capacitors that have a low equivalent series resistance (ESR), which helps in reducing the size and cost of the capacitors needed for the application.

Applications

The TPS79928YZUR is suitable for a wide range of applications, including but not limited to:

• Portable and battery-powered equipment
• Wireless LAN and Bluetooth® devices
• Handheld devices
• Medical equipment
• RF applications

With its combination of features and performance, the TPS79928YZUR is an excellent choice for designers looking for a reliable LDO regulator that can deliver clean power in a compact package.