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Implement good PCB layout practices, such as placing capacitor s close to the input and output pins of the LDO for optimal filtering. Use components rated for extended operational life, particularly capacitors, to reduce the chances of degradation over time.Conclusion
A drop in performance of the TPS71501DCKR after prolonged use is typically due to thermal overload, capacitor degradation, increased load currents, or input voltage fluctuations. By systematically checking these areas, you can pinpoint the cause and implement effective solutions, such as enhancing heat dissipation, replacing capacitors, managing load conditions, and stabilizing the input voltage. Regular maintenance and good design practices can also help ensure long-term reliability and performance of your LDO regulator.