NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 4 of 6
www.murata-ps.com/support
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
NTE0303MC
10 82103C 11R103C 4.7
NTE0305MC 47 82473C 11R103C 4.7
NTE0309MC 22 82223C 11R223C 2.2
NTE0312MC 10 82103C 11R103C 1
NTE0315MC 47 82473C 11R473C 1
NTE0503MC 10 82103C 11R103C 4.7
NTE0505MC 47 82473C 11R473C 4.7
NTE0505MEC 47 82473C 11R473C 4.7
NTE0506MC 10 82103C 11R103C 4.7
NTE0509MC 22 82223C 11R223C 2.2
NTE0512MC 47 82473C 11R473C 1
NTE0515MC 47 82473C 11R473C 1
NTE1205MC 47 82473C 11R473C 4.7
NTE1209MC 22 82223C 11R223C 2.2
NTE1212MC 47 82473C 11R473C 1
NTE1215MC 47 82473C 11R473C 1
