Datasheet

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© May 2016
Würth Elektronik eiSos GmbH & Co. KG - Data Sheet - REV 1.0
9/46
WPMDU1251501 / 171021501
MagI³C Power Module
VDRM - Variable Step Down Regulator Module
TYPICAL PERFORMANCE CURVES
If not otherwise specified, the following conditions apply: V
IN
= 7-50V; C
IN
= 2x 2.2µF X7R ceramic; C
O
= 2x 47µF X7R ceramic,
T
AMB
= 25°C.
0
10
20
30
40
50
60
70
30 100 1000
Frequency [MHz]
Radiated Emissions
[dBµV
/m]
Radiated Emissions 171021501
Measured on evaluation board without input filter
V
IN
= 24V, V
OUT
= 5V, f
SW
= 500kHz, I
LOAD
= 2A
Horizontal Vertical
EN55022 Class A limit
EN55022 Class B limit
0
10
20
30
40
50
60
70
30 100 1000
Frequency [MHz]
Radiated Emissions
[dBµV
/m]
Radiated Emissions 171021501
Measured on evaluation board with input filter C
f
= 2.2µF and L
f
= 22µH
V
IN
= 24V, V
OUT
= 5V, f
SW
= 500kHz, I
LOAD
= 2A
Horizontal Vertical
EN55022 Class A limit
EN55022 Class B limit
0
10
20
30
40
50
60
70
0.15 1 10
Frequency [MHz]
Conducted Emissions
[dBµV
/m]
Conducted Emissions 171021501
Measured on evaluation board with input filter C
f
= 2.2µF and L
f
= 22µH
V
IN
= 24V, V
OUT
= 5V, f
SW
= 500kHz, I
LOAD
= 2A
Average Quasi peak
EN55022 Class B Quasi Peak limit
EN55022 Class B Average limit
80
-10
300.5