Datasheet

NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G06 Page 4 of 6
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APPLICATION NOTES (continued)
Output Ripple Reduction
w
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.
Inductor Capacitor
L, µH Through Hole SMD C, µF
3.3V single output types 22 22R223C 82223C 4.7
5V single output types 22 22R223C 82223C 4.7
9V single output types 47 22R473C 82473C 2.2
12V single output types 220 22R224C 82224C 0.47
15V single output types 220 22R224C
82224C
0.47
Inductor Capacitor
L, µH Through Hole SMD C, µF
5V dual output types 22 22R223C 82223C 4.70
9V dual output types 47 22R473C 82473C 2.2
12V dual output types 220 22R224C 82224C 0.47
15V dual output types 220 22R224C 82224C 0.47
DC
DC
L
L
C
C
Load
Load
Power
Source
+V
OUT
OV
-V
OUT
DC
DC
L
C
Load
Power
Source