Datasheet

NML Series
Isolated 2W Single Output DC/DC Converters
KDC_NML.E02 Page 4 of 5
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APPLICATION NOTES (continued)
Output Ripple Reduction
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor
should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be
>20MHz.
DC
DC
L
C
Load
Power
Source
Inductor Capacitor
L, µH SMD Through Hole C, µF
NML0505SC 22 82223 11R223C 2.2uF
NML0509SC 47 82473 11R473C 1uF
NML0512SC 47 82473 11R473C 2.2uF
NML0515SC 68 82683 11R683C 3.3uF
NML1205SC 22 82223 11R223C 2.2uF
NML1209SC 47 82473 11R473C 1uF
NML1212SC 47 82473 11R473C 2.2uF
NML1215SC 68 82683 11R683C 3.3uF