Original Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA USP-4D
Alternative Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-USP (1.2x1.6)
1. XC6221C092GR-G Substitution Conclusion
Functional replacement is feasible, but power consumption impact requires careful evaluation. This part is fully compatible with the original device in core electrical specifications—input/output voltage, output current, dropout voltage, PSRR, enable control, and protection features—as well as in package outline. The key difference lies in the quiescent current (Iq), which increases from 8µA in the original part to 50µA. Under no-load or light-load standby conditions, the XC6221C’s own power dissipation is approximately six times higher than that of the original device. In power-sensitive applications such as battery-powered systems, this will directly reduce standby time, making it the critical trade-off when deciding whether substitution is acceptable.
2. XC6221D092GR-G Substitution Conclusion
The conclusion is identical to that for the XC6221C092GR-G: functional replacement is possible, but increased power consumption must be considered. Comparison shows that all published parameters of the XC6221D092GR-G—including the key 50µA quiescent current—and its package are exactly the same as those of the XC6221C092GR-G. The two devices likely belong to the same product series, with only minor differences possibly in unpublished test specifications or internal revision levels. Their impact as replacements for the original part is the same as described for the C version: “pin‑ and function‑compatible, but with significantly higher quiescent power consumption.” The application decision should be based on the system’s sensitivity to power dissipation.
Analysis ID: 8009-4C79000
Based on part parameters and for reference only. Not to be used for procurement or production.
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