B0303XT-1WR2_15 Datasheet, PDF (4/5 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
B_XT-1WR2 Series
Efficiency Vs Input Voltage (Full Load)
100
95
90
85
B2415XT-1WR2
80
75
70
65
60
55
50
21.6 22.1 22.6 23.1 23.5 24.0 24.5 25.0 25.4 25.9 26.4
Input Voltage(V)
Efficiency Vs Output Load(Vin=24V)
100
90
80
B2415XT-1WR2
70
60
50
40
30
20
10
0
10 20 30 40 50 60 70 80 90 100
Output Current Percentage(%)
Design Reference
1. Typical application circuit
If it is required to further reduce input and output ripple, a filter capacitor may be connected to the input and output terminals, see Fig.3.
Moreover, choosing a suitable filter capacitor is very important, start-up problems may be caused if the capacitance is too large. Under
the condition of safe and reliable operation, the recommended capacitive load values are shown in Table 1.
Vin
C in
GND
DC DC
Fig.3
C out
+Vo
0V
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(μF)
Vo (VDC)
Cout(μF)
3.3
4.7
3.3
10
5
4.7
5/6
10
12
2.2
9
4.7
15
2.2
12
2.2
24
1
15
1
--
--
24
0.47
2. EMC solution-recommended circuit
LDM
Vin
Vin
+Vo
C1
GND
DC/DC _C2 LOAD
GND 0V
Input voltage (VDC)
C1
EMI
C2
LDM
3.3/5/12/15/24
4.7μF /50V
Refer to the Cout in Fig.3
6.8μH
Fig. 4
3. Output load requirements
When using, the minimum load of the module output should not be less than 10% of the nominal load. In order to meet the performance
parameters of this datasheet, please connect a 10% dummy load in parallel at the output end, the dummy load is generally a resistor,
Please note that the resistor needs to be used in derating.
4. For more information please find DC-DC converter application notes on www.mornsun-power.com
2015.04.03-A/3
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