When I tesing my design board for TPS552892.
The efficiency does not meet specifications definition.
Test data1 _(PFM_5Vin/ 5vout):
Test data2 -(FPWM_(5Vin/ 5vout)):
But, When I change the VIn to 20V(Keep Vout : 5V)
The measurement data is close to the specification information.
Test data2 -(FPWM_(20Vin/ 5vout)):
As far as I know, 558892 duty cycle can be 100%,
Why is it so bad of Efficiency for 5vin/5vout?
