The PJ9193M33SE is a low drop-out (LDO) regulator SOT-23-5 in a RoHS (restriction of hazardous substances) compliant package manufactured by Pingjingsemi. It is a 3-terminal regulator, which means it has three external pins available: one input, one ground, and one output. The input can range from 1.5V to 10V, and the regulator has a wide output range from 0.9V to 25V. It also has a low quiescent current of 40µA, making it an ideal solution for applications requiring low power consumption. It also has good ripple rejection characteristics, which helps to minimize noise in the output signal. The regulating function is protected by a current limit and thermal shutdown. The regulator is also RoHS compliant, meaning that it does not exceed the required limit on hazardous substances such as lead.