TPS60401 input 2.5V, when the temperature drops to - 40 degrees Celsius, the input voltage suddenly drops below 1V, TPS60401 is removed from the PCB, and the front output 2.5V returns to normal. The former input is DC/DC module, with load capacity greater than 100 mA, and the output load of TPS60401 is only 10 mA. The data shows that the working temperature range of TPS60401 is from - 40 to 85 degrees Celsius. How to solve the problem now? TPS60401 is a sample applied from the official website.