Hello,
In our case we use a current measurement by shunt (resistor). We see virtually no influence on the measurement of the TPS40422 as the temperature of the board changes. While the consumption at this part increases by 40%. The TPS40422 is correctly configured. On the other hand if we put a resistive load on this part we see an influence. I feel that we can not measure the dynamic part of the signal. We use the TPS40422 in Two-Phase Synchronous Buck Controller. Attached you will find two signal readings at shunt resistor R2914.The measurement is carried out through the resistor R2914 :
Do you have an idea of the cause of the problem?