Dear Support team
I checked the input current by swinging the load of the TPS54040 from 10 mA to 100 mA.
Although the input current decreases linearly as Vin is increased, it seems that it increases only when Iout =10 mA. And value seems unstable at Iout=10mA
What is the reason for this?
It seems that the pulse skip mode is related, but is the current unstable at that time?
■Condition
Vin :11~16V Vout:1.5V Iout:10mA~100mA Fsw:400kHz
Regards
Tomohiro Nagasawa