When using this device it seems under light load regulation we are getting a 60KHz noise on the output with 5V input and 1.2V out. When disabling the PFM mode the noise goes away. Can you confirm that the 60KHz noise frequency is consistent with the PFM mode operation? Do you believe this noise we are seeing is caused by PFM operation? If it is likely PFM noise is their a way to eliminate this noise without disabling the PFM operation?