cui.com

date 07/01/2021

│ page 8 of 9

CUI Inc

│ SERIES: PCN1-M │ DESCRIPTION: DC-DC CONVERTER

TEST CONFIGURATIONS

Input Ripple Current & Output Noise

Table 1

L1

12 µH

C1

2.2 µF tantalum capacitor

C2

NC

EMC RECOMMENDED CIRCUIT

Test Condition

Input Voltage: Nominal

Output Load: Full Load

Table 2

Input

Voltage

(Vdc)

Cin

5

2.2 µF ceramic capacitor

12

2.2 µF ceramic capacitor

Figure 2

Measuring Output Ripple & Noise for

Single Output Models

Figure 1

Measuring Input Ripple Current

Figure 3

Measuring Output Ripple & Noise for

Dual Output Models

Table 3

Figure 4

Conducted Emissions Test Circuit

EN55022 Class B

Recommended External Circuit Components

Input

Voltage

(Vdc)

L1

5

4.7 µF / 25 V 4.7 µF / 25 V

10 µH

12

4.7 µF / 25 V 4.7 µF / 25 V

10 µH

Notes:

1. Ceramic Capacitor

Additional Resources: Product Page | 3D Model | PCB Footprint