B0503XT-2WR2_15 Datasheet, PDF (4/5 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
B_XT-2WR2 Series
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
2. EMC solution-recommended circuit
LDM
Vin
Vin
+Vo
GND
C1 C2
DC/DC _C3 LOAD
GND
0V
CY
Fig. 4
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(μF)
Vo (VDC)
Cout(μF)
5
4.7
3.3
10
12
2.2
5
10
15
2.2
9
4.7
24
1
12
2.2
--
--
15
1
--
--
24
0.47
Input voltage (VDC)
C1
C2
EMI
C3
CY
LDM
5/12/15
24
4.7μF /50V
4.7μF /50V
Refer to the Cout in Fig.3
--
1nF/2KV
6.8μH
Notes: 1. 24V input series, 24V output series is subject to CY (CY : 1nF/2KV).
2. It is not needed to add the component in the peripheral circuit when
parameter with the symbol of "--".
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
Dimensions and Recommended Layout
12.70±0.50[0.500±0.020]
7.62[0.300]
8
5
TopView
12
4
0.60[0.024]
2.54[0.100]
FrontView
0.10
Note:
Unit:mm[inch]
Pinsectiontolerances:±0.10[±0.004]
Generaltolerances:±0.25[±0.010]
THIRDANGLEPROJECTION
7.62[0.300]
8
5
A
TopView
12
4
1.00[0.039]
2.54[0.100]
Note:Grid2.54*2.54mm
RightView
A
0.88[0.035]
Pin-Out
Pin
Function
1
GND
2
Vin
4
0V
5
+Vo
8
NC
NC:NoConnection
2BXT1WR201-A0
2015.04.17-A/2
Page 4 of 5
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