Vicor VI-J00 Family DC-DC Converters and Configurable Power Supplies - Manual (Page 27)

Design Guide & Applications Manual
For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies
VI-200 and VI-J00 Family Design Guide Rev 3.5 vicorpower.com
Page 26 of 98
Apps. Eng. 800 927.9474 800 735.6200
9. EMC Considerations
NOTE:
A low ESR capacitor should be used on the output, preferably tantalum.
3 Amp Load 15 Amp Load 30 Amp Load
+IN
–IN
+OUT
–OUT
C3a
GATE
IN
GATE
OUT
+S
TRIM
–S
C4
C2a
C1
C2b C3b
C1 = 100 µF
C2a – C2b = 4,700 pF (Vicor Part # 01000)
C3a – C3b = 0.01 µF (Vicor Part # 04872)
C4 = 270 µF (Tant.)
Conditions
Light Load = 3 A
Nominal Load = 15 A
Full Load = 30 A
Figure 9–11 — Output noise, additional output capacitance
Output Ripple vs. Load
Addition of Output Capacitor
Typical Vicor Module (VI-230-CV) 48 V Input, 5 V Output