Original Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 4-USP (1.2x1.6)
Alternative Part
Linear Voltage Regulator IC Positive Fixed 1 Output 200mA USP-4D
1. XC6217A092GR-G Substitution Conclusion
The XC6217A092GR-G can serve as a direct drop‑in replacement for the XC6221B092GR-G, as their key specifications are highly aligned: both support a fixed 0.9 V output, 200 mA current rating, 6 V maximum input, 70 dB PSRR, and the same package (4‑UDFN), while also featuring enable control and over‑current protection. The primary difference lies in the quiescent current (Iq): the XC6217A has an Iq of 8 µA, significantly lower than the original part’s 50 µA. This reduces power consumption in standby or light‑load conditions, extending battery life in portable devices. It should be noted, however, that the extremely low Iq may affect certain dynamic performance characteristics, such as load transient response. Overall, if the application is power‑sensitive and does not impose stringent dynamic performance requirements, the XC6217A can be used as a full replacement.
2. XC6217B092GR-G Substitution Conclusion
The XC6217B092GR-G shares nearly identical parameters with the XC6217A092GR-G, including the 8 µA low Iq; therefore, its substitution conclusion is the same as that for the XC6217A. As a replacement for the XC6221B092GR-G, it is fully compatible in electrical characteristics and package, offering the same quiescent‑current advantage. It should be noted that the XC6217 series (both A and B versions) may exhibit subtle differences from the original part in internal design or process, such as ESR requirements for the output‑stabilizing capacitor or enable‑pin response time. Stability verification in the actual application is recommended. Provided the system can tolerate the potential dynamic performance changes associated with low Iq, the XC6217B can safely replace the original device.
Analysis ID: 2DC7-5C0E000
Based on part parameters and for reference only. Not to be used for procurement or production.
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