RT2-S20D3WR Datasheet, PDF (4/5 Pages) RSG Electronic Components GmbH – 2W, fixed input voltage isolated & unregulated single output

2W, fixed input voltage
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DC/DC-Converter
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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
2. EMC solution-recommended circuit
C out
+Vo
0V
Recommended capacitive load value table (Table 1)
Vin(VDC)
Cin(µF)
Vo (VDC)
Cout(µF)
5
4.7
5
10
12
2.2
9
4.7
15
2.2
12
2.2
24
1
15
1
--
--
24
0.47
Vin
GND
LDM
Vin
+Vo
C1 C2
DC/ DC
GND
0V
C 3 ^{LO AD}
CY
Fig. 4
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/3KV
6.8µH
Note: 1. 24V input series, 24V output series is subject to CY (CY :
1nF/3KV).
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.
For more information please find DC-DC converter application notes on www.rsg-electronic.de
RSG Electronic Components • Sprendlinger Ldstr. 115 • 63069 Offenbach • phone: [phone] • [e-mail]
RSG Electronic Components GmbH •Sprendlinger Ldst. 115 • 63069 Offenbach •[phone] •rsg-electronic.de
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