1. XC6221C092GR-G Substitution Conclusion The part is a viable substitute, but key performance differences must be considered. The XC6221C092GR-G is fully compatible with the original XC6217D092GR-G in terms of fundamental parameters (input/output voltage, output current, package, enable control, and protection features). However, its quiescent current (Iq) increases from 8µA to 50µA. In applications involving continuous standby or low-power operation, this will lead to a significant rise in no-load power consumption for the new device, potentially impacting the battery life of powered equipment. Substitution requires careful evaluation if the application is sensitive to quiescent current; otherwise, a direct replacement is acceptable.