WPMDH1100601 / 171010601
MagI3C Power Module
VDRM – Variable Step Down Regulator Module
PACKAGE
EP
Exposed Pad = PGND
YMLLLLSG3
MagI3C
171010601
1
2
3
4
5
6
7
7
6
5
4
3
2
1
6
6
7
7
Top View
Bottom View
MARKING DESCRIPTION
Marking
Description
WE
Würth Elektronik tradename
Y
Year
M
Month
LLLL
Assembly lot code
S
Assembly site code per QSS 050-120
G3
Lead finish code per Jedec Norm (green 3 mat sin)
MagI3C
171010601
MagI³C logo
Order code
PIN DESCRIPTION
SYMBOL NUMBER TYPE
DESCRIPTION
The supply input pin is a terminal for an unregulated input voltage source. It is required
to place the input capacitor nearby the VIN pin and PGND.
VIN
1
2
Power
Input
An external resistor from RON to VIN pin sets the on-time and frequency of the
application.
RON
Connecting this pin to GND disables the device. Connecting this pin to a voltage
higher than 1.18V typ. (but <6.5V) or leaving it floating enables the device. This pin
can be used in order to set an external UVLO through a resistor divider. If this pin is
left floating the device is always on.
EN
3
Input
The analog ground pin is the reference point for all stated voltages. It is internally
connected to PGND.
AGND
SS
4
5
Supply
Input
For the soft-start function there is an internal 8μA current source which charges an
external capacitor (CSS) to generate the soft-start. A minimum capacitance is required
The feedback pin is internally connected to the regulation circuitry, the overvoltage and
short-circuit comparators. The regulation reference point is 0.8V at this input pin.
Connect the feedback resistor divider between the output and AGND to set the output
voltage.
FB
6
Input
The output voltage pin is connected to the internal inductor. For the best stability and
operation connect the output capacitor between this pin and PGND.
VOUT
PGND
7
Power
Power
Exposed Pad – Main node for switch current of the internal low-side MOSFET. Used
as heat sink for power dissipation during operation.
EP
we-online.com
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© September 2017
2/54
WURTH [ WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. ]
