1. XC6217C092GR-G Substitution Conclusion Feasible, representing a low-power upgrade replacement. In terms of key specifications, the XC6217C092GR-G is fully aligned with the original part XC6221C092GR-G in input/output voltage, output current, dropout voltage, PSRR, package, and protection features, ensuring identical basic electrical performance and physical compatibility. The most significant difference lies in the quiescent current (Iq): the XC6217C has a typical Iq of 8 µA, substantially lower than the 50 µA of the original model. Under standby or light-load conditions, the XC6217C can significantly reduce system power consumption and extend battery life, making it particularly suitable for power-sensitive applications such as wearables or IoT end nodes. This improvement stems from architectural optimizations in the internal reference and error amplifier circuitry, representing a positive performance enhancement. Therefore, the XC6217C092GR-G can directly replace the original part, offering power-saving benefits without requiring any peripheral circuit modifications.