We are designing an RF Board with ADRV9002. For powering the ADRV9002 , ADP5056 is used. Our design is exactly same as ADRV9002 EVK. The only difference is 5V input. Herewith i have attached the switch node waveform for Out1. The switch node waveform is not looks like proper PWM wave, is this a correct behavior? We have configured the converter in FPWM Mode.
All inductors, input capacitors, output capacitors and feedback resistor values are same as EVK(https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-adrv9002.html)