SunSet,
We usually spec non-switching Iq when the part has frequency foldback / pulse skipping at light loads. This is so that the reader has an idea of the lower-bound of operating currents when the part switches at an extremely reduced frequency from…
Hello Shimizu-san,
It should be possible, but in the cases like this we always suggest customer gets device EVM and verifies operation in their application specific conditions.
Here is link to the EVM
www.ti.com/.../tps54061evm-142
Regards
Brani