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. XC6217A25A7R-G Substitution Conclusion
Based on core electrical parameters, package, and functionality, the XC6217A25A7R-G can serve as a direct drop-in replacement for the original part, XC6501D25A7R-G. Both LDOs are positive-voltage, fixed 2.55V output, 200mA regulators featuring an enable (EN) pin and overcurrent protection, with fully compatible packages. The key differences are as follows: 1) Quiescent current (Iq) is reduced from 19µA to 8µA. This significantly lowers system power consumption under light-load or standby conditions, extending battery life. 2) Dropout voltage (Vdropout) is substantially improved. The original part requires 0.38V at 200mA, while the new device needs only 0.17V at 100mA. This indicates a lower minimum required input voltage for the same load, allowing the system to maintain operation longer as the battery discharges and improving overall power supply efficiency. 3) Power Supply Rejection Ratio (PSRR) is enhanced from 50dB to 70dB. The new device offers superior rejection of ripple and noise from the input supply, providing a cleaner and more stable voltage to the load. This substitution represents a performance upgrade and is a viable direct replacement in the vast majority of applications.
2. XC6217B25A7R-G Substitution Conclusion
The XC6217B25A7R-G also presents a feasible direct replacement for the original XC6501D25A7R-G. Its provided specifications are identical to the 'A' version discussed above, including the improved quiescent current (8µA), lower dropout voltage (0.17V @100mA), and higher PSRR (70dB). Typically, the distinction between 'A' and 'B' suffixes within the same product family may involve characteristics not listed in the basic parameters, such as output voltage accuracy, enable pin logic threshold levels, or minor optimizations in internal compensation. While the conclusion regarding performance upgrade over the original part holds true for the 'B' version based on primary specifications, it is advisable to review the detailed datasheet before implementation. This ensures any unspecified parameters are fully aligned with the 'A' version or better suit specific application requirements (e.g., more stringent output voltage accuracy). In the absence of such specific needs, the 'B' version generally serves as a viable performance-upgrade alternative as well.
Analysis ID: 79E3-A13E000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com