TPS92641: TPS92641 unstable at 2A output current

Part Number: TPS92641

Hi,

Seems that the current output at 2.2A is unstable in my application. (noise between 3 and 10 KHz)

We play with the ADJ pin to programm either 1.2 or 2.2A.

Everthing else same as reference schematic.  (COMP cap = 470nF, inductance =  68µF, 3A,  output cap = 2.2µF,  power led =  15V@2A,  input voltage stable at 24V)

Any idea to get a good waveform ?

Michel