The RT9261-35GB is a DC-DC switching regulator that is part of the Richtek USA Inc. This regulator has a fixed output of 3.5V and can output up to 60mA. It has a boost topology and operates at a switching frequency of 120kHz. This regulator is supplied in a tape and reel package of 3000 units. It has a SOT-23-5 package and can operate at temperatures ranging from -20°C to 85°C. It is ECCN EAR99 compliant, which means that it is not subject to any special restrictions. This regulator is an excellent choice for those who want a high-quality and reliable regulator.