Datasheet

WPMDB1400362Q / 171040302
MagI
3
C Power Module
VDRM – Variable Step Down Regulator Module
we-online.com Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© May 2016 26/48
Nevertheless, as indicated in point 4, one or more measurements should be performed in order to find the most suitable
value of C
OUT
. After some iterations, the most suitable output capacitance is determined. Due to its high value, a combination
of two MLCC (47µF each one) and an electrolytic capacitor (220µF) is implemented. The final result is shown in the picture
below:
-0,30
-0,20
-0,10
0,00
0,10
0,20
0,30
-4
-3
-2
-1
0
1
2
3
4
0 20 40 60 80 100 120
V
OUT
(AC coupled) [V]
I
OUT
[A]
time [µs]
Load transient with C
OUT
= 2x47µF MLCC + 220µF electrolytic
V
OUT
I
OUT
ΔV
OUT
= 0.16V
24µs
V
discharge
= 0.1V