KDC_NMJC.G02 Page 3 of 6

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NMJ Series

5.2kVDC Isolated 1W DC/DC Converters

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.

Inductor

Capacitor

L, μH

Through Hole

SMD

C, μF

Size

V rating, V

3.3V single output types

Consult Factory

5V single output types

Consult Factory

9V single output types

Consult Factory

12V single output types

Consult Factory

15V single output types

Consult Factory

Inductor

Capacitor

L, μH

Through Hole

SMD

C, μF

Size

V rating, V

5V dual output types

22

22R223C

82223C

4.70

1206

10

9V dual output types

Consult Factory

12V dual output types

68

22R224C

82224C

0.47

0805

25

15V dual output types

Consult Factory

DC

DC

L

L

C

C

Load

Load

Power

Source

OV

DC

DC

L

C

Load

Power

Source