The current ripple noise (unit: rms) is as follows:
PWR401L: 80 mA
PWR401ML: 40 mA
PWR401MH: 12 mA
PWR401H: 6 mA
PWR801L: 160 mA
PWR801ML: 80 mA
PWR801MH: 24 mA
PWR801H: 12 mA
PWR1201L: 240 mA
PWR1201ML: 120 mA
PWR1201MH: 36 mA
PWR1201H: 18 mA
PWR2001L: 400 mA
PWR2001ML: 200 mA
PWR2001MH: 60 mA
PWR2001H: 30 mA
For the details, read the user’s manual – chapter of Specifications.