TPS54331 was used on condition of Vin=5.0 Vo=4.1V. Since swiching stops only at the time of a light load,I think the same behavior as the following.
http://e2e.ti.com/support/power_management/non-isolated_dcdc/f/196/t/177201.aspx
Although I think that TPS54331 and TPS54160(A) is applied to these contents, which other product is applied?
（TPS54231,54232,54233,54331,54332,54140,54240,54240??）
Best regards,
Noda
