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178020601 Datasheet(PDF) 2 Page - Wurth Elektronik GmbH & Co. KG, Germany. |
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178020601 Datasheet(HTML) 2 Page - Wurth Elektronik GmbH & Co. KG, Germany. |
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2 / 29 page  we-online.com Würth Elektronik eiSos GmbH & Co. KG - Data Sheet - REV 1.0 2/29 WPMDH1200601 / 171020601 MagI³C Power Module VDRM - Variable Step Down Regulator Module PACKAGE Top View TO263-7EP PIN DESCRIPTION PIN # SYMBOL TYPE PIN DESCRIPTION 1 VIN 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 RON Input An external resistor from RON to VIN pin sets the on-time and frequency of the application. The value r ange 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 8 μA 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 VOUT 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. +49 (0) 79 42 945 - 0 www.we-online.com powermodules@we-online.com RON VIN EN AGND SS FB VOUT 1 2 3 4 5 6 7 Exposed Pad = PGND Connect to AGND EP |
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