Datasheet

MER1 Series
1kVDC Isolated 1W Single Output DC/DC Converters
KDC_MER1.B06 Page 4 of 11
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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
MER1S0505SC 10 82103C 11R103C 4.7
MER1S0509SC 22 82223C 11R223C 2.2
MER1S0512SC 47 82473C 11R473C 1
MER1S0515SC 47 82473C 11R473C 1
MER1S1205SC 10 82103C 11R103C 4.7
MER1S1209SC 22 82223C 11R223C 2.2
MER1S1212SC 47 82473C 11R473C 1
MER1S1215SC 47 82473C 11R473C 1
MER1S1505SC 10 82103C 11R103C 4.7
MER1S1509SC 22 82223C 11R223C 2.2
MER1S1512SC 47 82473C 11R473C 1
MER1S1515SC 47 82473C 11R473C 1
MER1S2405SC 10 82103C 11R103C 4.7
MER1S2409SC 22 82223C 11R223C 2.2
MER1S2412SC 47 82473C 11R473C 1
MER1S2415SC 47 82473C 11R473C 1
MER1S4805SC 10 82103C 11R103C 4.7
MER1S4809SC 22 82223C 11R223C 2.2
MER1S4812SC 47 82473C 11R473C 1
MER1S4815SC 47 82473C 11R473C 1