Original Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-USPN (0.90x1.2)
Alternative Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-USPN (0.90x1.2)
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-USPN (0.90x1.2)
1. XC6221C25A7R-G Substitution Conclusion
Substitution is feasible, but the impact of increased quiescent current must be evaluated. Compared to the original part XC6217C25A7R-G, the key difference lies in the quiescent current (Iq), which increases from 8 µA to 50 µA (a more than 6x increase). Furthermore, the original part's specified "Current - Supply (Max)" parameter (50 µA) is either undefined or potentially higher in the XC6221C series. When enabled, especially under light-load or no-load conditions, the XC6221C25A7R-G will exhibit significantly higher self-consumption than the original part. This may render it unsuitable for applications with stringent battery life or ultra-low Iq requirements, such as always-on IoT devices. In all other aspects—key electrical specifications (output voltage, maximum output current, dropout voltage, PSRR, enable control, protection features) and package (4-XDFN)—the two devices are identical. For non-battery-powered applications or those insensitive to microamp-level current draw, direct substitution is acceptable.
2. XC6221D25A7R-G Substitution Conclusion
Substitution is feasible, subject to the same evaluation regarding increased quiescent current as described for the C version above. The XC6221D25A7R-G and the XC6221C25A7R-G share identical published parameters, including the critical 50 µA quiescent current, indicating they are likely different internal revisions or screening grades within the same chip family. Therefore, its differences from the original XC6217C25A7R-G and the associated substitution conclusion are identical to those stated above: the primary distinction and consideration is the significantly higher quiescent current (from 8 µA to 50 µA) and the resulting additional power dissipation. This factor determines its suitability for power-critical applications. In all other scenarios where performance and physical interface (package, pinout) are compatible, it can serve as a drop-in replacement.
Analysis ID: 0EDC-CCC8000
Based on part parameters and for reference only. Not to be used for procurement or production.
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