F0505XT-W2R2 Datasheet, PDF (3/4 Pages) MORNSUN Science& Technology Ltd. – Continuous short-circuit protection

DC/DC Converter
F_XT-W2R2 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.
The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat
protection that is connected to the input or output end in series (see Fig. 4).
Vin
C in
GND
DC DC
Fig.3
C out
+Vo
0V
Vin
REG
REG
+Vo
DC DC
GND
0V
Fig.4
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(µF)
Vo (VDC) Cout(µF)
5
4.7
5
10
12
2.2
--
--
2. EMC solution-recommended circuit
LDM
Vin
Vin
+Vo
C1
GND
DC/DC _C2 LOAD
GND
0V
Fig. 5
Input voltage (VDC)
C1
EMI
C2
LDM
5/12
4.7µF /50V
Refer to the Cout in Fig.3
6.8µH
3. Output load requirements
In order to ensure the converter can work reliably with high efficiency, the minimum load should not less than 10% rated load when it is used.
If the needed power is indeed small, please parallel a resistor on t the output side ( The sum of the efficient power and resistor consumption
power is not less than 10%).
4. For more information please find DC-DC converter application notes on www.mornsun-power.com
2015.09.25-A/0
Page 3 of 4
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation