WPMDH1100601 / 171010601
MagI3C Power Module
VDRM – Variable Step Down Regulator Module
2: Analog Ground (AGND) connections
MagI3C Module
PGND
4
5
6
1
3
2
7
GND
VIN
GND
VOUT
CIN1
CIN2
COUT1 COUT2
RON
RENT
CSS
RFBB
CFF
RFBT
Bottom
RENB
GROUND PLANE
The ground connections for the soft-start capacitor (CSS), the output voltage lower resistor divider (RFBB) and enable
components (when used) should be routed to the AGND pin of the device. If not properly handled, poor grounding can result
in degraded load regulation or erratic output voltage ripple behavior. Place CSS, RFBT and RFBB close to their respective pins.
3: Analog Ground (AGND) to Power Ground (PGND) connections
MagI3C Module
PGND
4
5
6
1
3
2
7
GND
VIN
GND
VOUT
CIN1
CIN2
COUT1 COUT2
RON
RENT
CSS
RFBB
CFF
RFBT
Bottom
RENB
GROUND PLANE
Module internal connection:
The AGND is internally connected to PGND at a low noise node. The output ground current is flowing from the PGND pad
through the ground plane through the ground terminal of the first output capacitor. Due to its very low ripple it will not inject
noise in the ground plane.
we-online.com
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© September 2017
41/54
WURTH [ WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. ]
