NTA1215MC Просмотр технического описания (PDF) - Unspecified
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NTA1215MC Datasheet PDF : 8 Pages
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NTA Series
Isolated 1W Dual Output SM 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.
+VOUT
L
Power
Source
DC
OV
DC
-VOUT
L
C
Load
C
Load
L, μH
NTA0303MC
10
NTA0305MC
22
NTA0309MC
22
NTA0312MC
22
NTA0315MC
22
NTA0503MC
10
NTA0505MC
10
NTA0505MEC
10
NTA0509MC
22
NTA0512MC
22
NTA0515MC
22
NTA1205MC
10
NTA1209MC
22
NTA1212MC
22
NTA1215MC
22
Inductor
SMD
82103C
82223C
82223C
82223C
82223C
82103C
82103C
82103C
82223C
82473C
82474C
82103C
82223C
82223C
82223C
Through Hole
11R103C
11R223C
11R223C
11R223C
11R223C
11R103C
11R103C
11R103C
11R223C
11R473C
11R474C
11R103C
11R223C
11R223C
11R223C
Capacitor
C, μF
4.7
2.2
2.2
1
1
4.7
4.7
4.7
2.2
1
1
4.7
2.2
1
1
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KDC_NTA.I09 Page 5 of 8
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