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. XC6501C2717R-G Substitution Conclusion
In terms of package, output voltage, current capability, and basic features (enable, overcurrent protection), the XC6501C2717R-G can serve as a direct drop-in replacement for the original part. However, two key technical differences exist. The dropout voltage of the XC6501C (0.38V @200mA) is notably higher than that of the original part (0.17V @100mA). In low-voltage input applications such as battery-powered systems, this translates to a higher minimum input voltage required to maintain regulation, potentially leading to premature device shutdown. Furthermore, its power supply rejection ratio (PSRR) of 50dB is lower than the original's 70dB, resulting in weaker suppression of input ripple and noise. This may degrade the performance of downstream noise-sensitive analog circuits. Substitution is acceptable if the application is not critical about dropout voltage or power supply cleanliness. For low-voltage input or noise-sensitive environments, a careful evaluation is required.
2. XC6501D2717R-G Substitution Conclusion
The substitution conclusion for the XC6501D2717R-G is identical to that for the XC6501C2717R-G described above. Based on the provided parameters, these two parts are electrically identical in all key specifications—including dropout voltage, quiescent current, and PSRR—and share the same package. The only difference is the suffix ("C" vs. "D") in the part number. According to Torex's naming convention, this suffix typically denotes non-electrical characteristics such as tape and reel orientation. Consequently, they present identical advantages and disadvantages as potential substitutes: they are functionally and mechanically compatible, but the same caveats apply. Special attention must be paid to whether their higher dropout voltage and lower PSRR meet the specific requirements of your application, particularly concerning input voltage margin and system noise immunity.
Analysis ID: 9B8E-8DE6000
Based on part parameters and for reference only. Not to be used for procurement or production.
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