TPS2121RUXR – TEXAS INSTRUMENTS

The TPS2121RUXR is a Texas Instruments single-channel, 4A synchronous buck converter in a compact, 6-pin SOT-23-6 package. It features a wide input voltage range of 2.7V to 5.5V, enabling its use in various battery-powered applications. The device boasts a high efficiency exceeding 90% at typical operating currents, minimizing power loss and extending battery life. Output voltage is adjustable via an external resistor divider, typically ranging from 0.8V to 5V. Internal compensation simplifies design, requiring minimal external components._x000D_
_x000D_
This device utilizes a constant-frequency, current-mode control architecture ensuring fast transient response and good load regulation. Protection features include short-circuit, overcurrent, overtemperature, and undervoltage lockout (UVLO), enhancing system robustness. The TPS2121RUXR is ideally suited for applications requiring a highly efficient, compact, and easily implemented DC-DC converter, such as portable devices, sensor nodes, and low-power embedded systems. Its small size and integrated protection make it a preferable choice where board space is limited and reliability is paramount. The device’s low quiescent current further contributes to its energy efficiency, making it suitable for always-on applications.