The H7211-28M5R is a SOT23-5 RoHS Low Dropout Regulator manufactured by Siproin. It is a linear voltage regulator designed to provide a stable voltage output over a wide range of conditions. Its wide input voltage range and low dropout voltage make it ideal for applications where power conservation is important. It has a wide range of features including a low 0.5V dropout voltage, current limit protection, reverse current protection, thermal shut down, low quiescent current, and line transient protection. It is suitable for mobile, automotive, consumer, and industrial applications.