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
From the perspective of key electrical parameters and package, the XC6221C092GR-G is a viable direct replacement for the original part. Both are 0.9V fixed-output, 200mA LDOs in a 4-UDFN package, with a maximum input voltage of 6V, and featuring enable and overcurrent protection functions. The critical difference lies in the quiescent current (Iq): the original part is rated at 8µA, while the XC6221C is 50µA, approximately six times higher. In battery-powered applications with prolonged standby or light-load conditions, the substitute would significantly increase static power consumption and reduce battery life. If the application is extremely power-sensitive, caution is advised. However, in non-battery-powered systems or scenarios where Iq is not a critical concern, it can be considered a pin-to-pin and functionally compatible alternative.
2. XC6221D092GR-G Substitution Conclusion
The XC6221D092GR-G shares identical electrical parameters with the XC6221C092GR-G, including the same 50µA quiescent current. Therefore, the substitution conclusion is the same as for the C version above: the key difference remains the increase in Iq from 8µA to 50µA. This difference dictates the suitability of the replacement. If the original design relies on ultra-low quiescent current for extended standby time, the substitution will incur a power penalty. If the system has relaxed static power requirements or is powered by a main supply, this part is fully compatible in function, package, and basic performance and can serve as a direct replacement for the original model.
Analysis ID: D531-09D9000
Based on part parameters and for reference only. Not to be used for procurement or production.
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