WPMDH1100601 / 171010601
MagI3C Power Module
VDRM – Variable Step Down Regulator Module
The results of the load transient tests with the selected COUT are shown below:
Load Transient from 0.5A to 1A
4
200
150
100
50
3
VOUT
2
0
∆VOUT = 30mV
-50
-100
-150
-200
IOUT2
1
IOUT1
0
0
10
20
30
40
50
60
70
80
90
100
110
120
Time [µs]
Load Transient from 1A to 0.5A
4
3
2
1
0
200
150
100
50
∆VOUT = 55mV
VOUT
IOUT1
0
-50
-100
-150
-200
IOUT2
0
10
20
30
40
50
60
70
80
90
100
110
120
Time [µs]
In both the positive and the negative transition, the ∆VOUT is significantly below the target (100mV). The explanation of the
strong reduction of the ∆VOUT lies in the use of a capacitance value higher than the one calculated.
we-online.com
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© September 2017
27/54
WURTH [ WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. ]
