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CUI Inc

│ SERIES: P78-500 │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR

date 05/26/2022

│ page 4 of 5

TYPICAL APPLICATION CIRCUIT

EMC RECOMMENDED CIRCUIT

1. The required C1 and C2 capacitors must be connected as close as possible to the module.

2. Refer to Table 1 for C1 and C2 capacitor values. For certain applications, increased values and/or tantalum or low ESR electrolytic

capacitors may also be used instead.

3. Converter cannot be used for hot swap and with output in parallel.

Figure 1

Table 1

Output Voltage (Vdc)

C1 (ceramic capacitor)

C2 (ceramic capacitor)

3.3, 5, 6.5

10µF/100V

22µF/10V

9

22µF/16V

12, 15

22µF/25V

24

10µF/50V

Figure 2

Table 2

Component

Recommended

value

MOV

S20K30

C1

680µF/100V

C2

4.7µF/100V

LDM2

120µH

C3

4.7µF/100V

C4

10µF/50V

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