The HT7733BA with DC-DC Converters Step-Up Fixed 1 0.85V 5V 3.3V 200mA SOT23-5 RoHS is an electronic part manufactured by Holtek. It is a small, space-saving device that takes input voltages from 0.85V-5V and outputs 3.3V at up to 200mA. It is designed to be placed on a Printed Circuit Board (PCB) and can be used in a variety of applications, including energy cascading, mobile devices, personal computers and industrial systems. It meets all ROHS (Lead Free) standards and has a low power consumption of only 40mW. The HT7733BA also comes with a range of features, including short circuit protection, over current protection and thermal shutdown protection.