TPS7A3301RGWR – TEXAS INSTRUMENTS

The TPS7A3301RGWR is a low-dropout (LDO) linear regulator from Texas Instruments, packaged in a space-saving 6-pin WSON (WCSP) package. It operates with an input voltage range of 2.5V to 5.5V, providing a fixed 3.3V output with a maximum output current of 300mA. Key features include a quiescent current of only 60µA, enabling significant power savings in battery-powered applications. Its low output noise (typically 30µVrms) makes it suitable for sensitive analog circuits. The device incorporates overcurrent protection and thermal shutdown for robust operation. The TPS7A3301RGWR achieves high efficiency through its low dropout voltage (typically 200mV at 300mA), minimizing power dissipation and heat generation. Common use cases include powering microcontrollers, digital-to-analog converters (DACs), and other low-power peripherals in portable devices, where its small size, low noise, and high efficiency are crucial. Its fixed output voltage simplifies design, eliminating the need for external components for voltage setting. However, designers should note the relatively low output current limit compared to other LDOs.