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VWRBT2-D24-S3.3-SMT Datasheet(PDF) 4 Page - CUI INC |
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VWRBT2-D24-S3.3-SMT Datasheet(HTML) 4 Page - CUI INC |
4 / 5 page cui.com date 10/14/2011 │ page 4 of 5 CUI Inc │ SERIES: VWRBT2 │ DESCRIPTION: DC-DC CONVERTER All of the VWRBT2-SMT Series have been tested according to the following recommended testing circuit before leaving the factory. This series should be tested under load (Figure 1). If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high (Table 1). 1. Requirement on Output Load In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exceeded. The minimum output load must be at least 10%. If the actual load is less than 10%, the output ripple may increase sharply while the efficiency and reliability will greatly reduce. 2. Recommended Circuit It is best to test with full load and not to test without load. To further reduce output ripple, you may increase the external capacitor, choose a capacitor with low ESR. 3. Input Current Nominal input voltage range. The input current of the power supply must be sufficient to the startup current (Ip) of the DC/DC module (Figure 2) IP≤1.4*Iin-max 4. No parallel connection or plug and play DC DC Cin +Vin -Vin +Vout -Vout Single Vout (Vdc) Cout (μF) 3.3 2,200 5 1,000 9 680 12 470 15 330 Figure 1 APPLICATION NOTES Table 1 Figure 2 |
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