Datasheet

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Würth Elektronik eiSos GmbH & Co. KG - Data Sheet - REV 1.0
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WPMDH1200601 / 171020601
MagI³C Power Module
VDRM - Variable Step Down Regulator Module
PACKAGE
Top View TO263-7EP
PIN DESCRIPTION
PIN #
SYMBOL
TYPE
PIN DESCRIPTION
1
V
IN
Power
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.
2
R
ON
Input
An external resistor from R
ON
to V
IN
pin sets the on-time and frequency of the
application. The value range of the resistor is from 25kΩ to 124kΩ.
3
EN
Input
The enable input pin is internally connected to the precision enable comparator
and the rising threshold is at 1.18V. Maximum recommended input level is 6.5V.
4
AGND
Supply
The analog ground pin is the reference point for all stated voltages and must be
connected to PGND.
5
SS
Input
For the soft-start function there is an internal 8μA current source which charges
an external capacitor to generate the soft-start.
6
FB
Input
The feedback pin is internally connected to the regulation circuitry, the over-
voltage 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.
7
V
OUT
Power
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.
EP
PGND
Power
Exposed Pad – Main node for switch current of internal LS-MOSFET. Used as
heat sink for power dissipation during operation. Must be electrically connected
to pin 4.
ORDERING INFORMATION
ORDER CODE
PART DESCRIPTION
PACKAGE
PACKING UNIT
171020601
WPMDH1200601JT
TO263-7EP
Tape and Reel with 250 Units
178020601
WPMDH1200601JEV
Eval Board
evaluation board 1 Unit
SALES INFORMATION
SALES CONTACTS
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Tel. [phone] - 0
www.we-online.com
[e-mail]
RON
VIN
EN
AGND
SS
FB
VOUT
1
2
3
4
5
6 7
6
7
Exposed Pad = PGND
Connect to AGND
EP