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
The XC6221C092GR-G can serve as a direct replacement for the XC6217B092GR-G, as both share identical key parameters: a fixed 0.9V output, 200mA output current capability, maximum input voltage of 6V, dropout voltage of 0.75V (@100mA), 70dB PSRR, enable control, and overcurrent protection, along with pin-to-pin compatible packaging (4-UDFN). The primary difference lies in the quiescent current (Iq), which increases from 8µA in the original part to 50µA. This results in slightly higher power consumption under standby or light-load conditions, which may impact applications with extreme low-power sensitivity, such as battery-powered devices. However, for most general-purpose circuits, this increase has no practical effect. If the application does not have stringent quiescent current requirements, this device can be considered a drop-in replacement.
2. XC6221D092GR-G Substitution Conclusion
The XC6221D092GR-G also meets the conditions for directly replacing the XC6217B092GR-G. Its specifications are identical to those of the XC6221C092GR-G, including quiescent current (50µA), voltage ratings, protection features, and package. As with the previous comparison, the deviation from the original model is limited to the increase in quiescent current (8µA → 50µA), which leads to a modest rise in system standby power consumption but does not adversely affect output voltage accuracy, load response, or stability. In designs not targeting ultra-low power operation, this device can be used as a seamless substitute. If the application imposes strict µA-level quiescent current constraints, the impact of the increased power draw should be evaluated.
Analysis ID: 1479-8AC4000
Based on part parameters and for reference only. Not to be used for procurement or production.
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