B-XT Datasheet, PDF (4/6 Pages) Microdc power Technology Co., Ltd – 1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER

B-XT Series
Application Notes
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.
B0303XT
B0305XT
B0309XT
B0312XT
B0315XT
B0503XT
B0505XT
B0505NXT
B0506XT
B0509XT
B0512XT
B0515XT
B1205XT
B1209XT
B1212XT
B1215XT
L,μH
10
47
22
10
47
10
47
47
10
22
47
47
47
22
47
47
Tolerance Envelopes
SMD
82103C
82473C
82223C
82103C
82473C
82103C
82473C
82473C
82103C
82223C
82473C
82473C
82473C
82223C
82473C
82473C
Inductor
Through Hole
11R103C
11R103C
11R223C
11R103C
11R473C
11R103C
11R473C
11R473C
11R103C
11R223C
11R473C
11R473C
11R473C
11R223C
11R473C
11R473C
Capacitor
C,μF
4.7
4.7
2.2
1
1
4.7
4.7
4.7
4.7
2.2
1
1
4.7
2.2
1
1
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to
changes in output loading.
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