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NMR Datasheet PDF : 11 Pages
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NMR Series
Isolated 1W Single Output DC/DC Converters
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.
L
Power
Source
DC
DC
C
Load
Inductor
Capacitor
L, μH
SMD
Through Hole
C, μF
NMR100C
10
82103C
11R103C
4.7
NMR101C
47
82473C
11R473C
1
NMR102C
47
82473C
11R473C
1
NMR106C
10
82103C
11R103C
4.7
NMR107C
47
82473C
11R473C
1
NMR108C
47
82473C
11R473C
1
NMR112C
10
82103C
11R103C
4.7
NMR113C
47
82473C
11R473C
1
NMR114C
47
82473C
11R473C
1
NMR118C
10
82103C
11R103C
4.7
NMR119C
47
82473C
11R473C
1
NMR120C
47
82473C
11R473C
1
NMR100PC
22
82223C
11R223C
1
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KDC_NMR.F01 Page 7 of 10
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