This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM63615-Q1: The Buck converter efficiency is in very light loading.

Part Number: LM63615-Q1
Other Parts Discussed in Thread: LMR43620-Q1

1.
The deserializer need 1.8V & 3.3V for power supply. The consumption are 34.2 uA and 7 uA for 1.8V and 3.3V in sleep mode, respectively.
I plan to use buck convert to 1.8V by LM6315 and 3.3V by TPS65320.

The input power is 12V. How can calculate converter efficiency?

2.
The system total consumption can not over than 100uW if only deserializer is powered in sleep mode.
Could you give me some suggestion in design?