Data Sheet

GAPTEC-Electronic GmbH & Co. KG
[e-mail] – www.gaptec-electronic.com
Page 4 of 5
1T8A_1.5UP – Rev. 2017-1.5
Specifications subject to change without notice.
1T8A_1.5UP Series
1W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
Typical application circuit
EMC solution-recommended 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.1.
Moreover, choosing a suitable filter capacitor is very important, start-up
problems may be caused if the capacitance is too large. Under the condi-
tion of safe and reliable operation, the recommended capacitive load va-
lues are shown in Table 1.
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%).
Vin (VDC) Cin (µF) Vout (VDC) Cout (µF)
3.3 4.7 3.3 10
5 4.7 5 10
12 2.2 9 4.7
15 2.2 12 2.2
24 1 15 1
-- -- 24 0.47
Table 1
Figure 1