WPMDL1101801 / 171011801 3 MagI C Power Module VDRM Variable Step Down Regulator Module 4V 18V / 1A / 0.8V 17V Output DESCRIPTION FEATURES The VDRM series of the MagIC Power Module family Peak efficiency up to 95% provides a fully integrated DC-DC power supply including Current capability: 1A the buck switching regulator, inductor, input and output Input voltage range: 4V to 18V capacitors in a package, allowing a minimum external Output voltage range: 0.8V to 17V components count solution, quick time to market and Reference accuracy: 1.5% ease of use. No minimum load required Integrated input and output capacitors The 171011801 family offers high efficiency and delivers Integrated shielded inductor up to 1A of output current. It operates from 4V input Exposed pads for best-in-class thermal performance voltage up to 18V. It is designed for fast transient Low output voltage ripple (< 20mV ) pp response. Fixed switching frequency: 850kHz Peak Current Mode control It is available in an innovative industrial high power Internal soft-start density LGA-16EP (9 x 9 x 3mm) package that enhances thermal performance. Synchronous operation Automatic power saving operation at light load The VDRM regulators have an integrated protection Undervoltage lockout protection (UVLO) circuit that guards against thermal overstress and Thermal shutdown electrical damage by using thermal shut-down, Short circuit protection overcurrent, short-circuit, and undervoltage protection. Cycle-by-cycle current limit Operating ambient temperature up to 85C RoHS and REACh compliant Operating junction temp. range: -40 to 125C TYPICAL APPLICATIONS Mold compound UL 94 Class V0 (flammability testing) certified Point-of-Load DC-DC applications from 5V, 9V and Complies with EN55022 class B radiated emissions 12V industrial rails standard Industrial, test & measurement, medical applications System power supplies DSPs, FPGAs, MCUs and MPUs supply I/O interface power supply TYPICAL CIRCUIT DIAGRAM 1,2,3,4 9,10,11,12 V VIN VOUT V IN OUT R FBT Module NO NEED FOR CIN NO NEED FOR COUT 16 13 EN FB GND R FBB 17 GND GND we-online.com Wrth Elektronik eiSos GmbH & Co. KG Datasheet 1.0 February 2018 1/49 WPMDL1101801 / 171011801 3 MagI C Power Module VDRM Variable Step Down Regulator Module PACKAGE VIN 1 12 VOUT VOUT 12 1 VIN PGND PGND PGND PGND EP EP EP EP VIN 2 11 VOUT VOUT 11 2 VIN 10 VOUT VOUT 10 3 VIN VIN 3 PGND PGND PGND PGND EP EP EP EP VIN 4 9 VOUT VOUT 9 4 VIN Top View Bottom View MARKING DESCRIPTION Marking Description WE Wrth Elektronik tradename MagIC MagIC Logo 171011801 Order Code YYWW Date Code XXXX Tracking Code E4 Lead finish code per Jedec PIN DESCRIPTION SYMBOL NUMBER TYPE DESCRIPTION The supply input pins are a terminal for an unregulated input voltage source. VIN 1,2,3,4 Power These pins are internally connected together. Connect externally all together with a single PCB track. The output voltage pins are connected to the internal inductor. These pins are VOUT 9,10,11,12 Power internally connected together. Connect externally all together with a single PCB track. The feedback pin is internally connected to the regulation circuitry. The FB 13 Input regulation reference point is 0.8V at this input pin. Connect the feedback resistor divider between the output and GND to set the output voltage. Connecting this pin to a voltage lower than 0.4V (e.g. GND) disables the device. Connecting this pin to a voltage higher than 1.2V enables the device. EN 16 Input This pin is connected to ground through an internal pull-down resistor. Therefore leaving this pin open disables the device. Exposed These pins are the ground connection of the device. All pins must be PGND EP Pads connected together externally with a copper plane for heat sinking Not These pins are not connected to the internal circuitry and are not connected to NC 5,6,7,8,14,15 connected each other. They can be left floating we-online.com Wrth Elektronik eiSos GmbH & Co. KG Datasheet 1.0 February 2018 2/49 NC 5 16 EN NC 6 15 NC NC 7 14 NC NC 8 13 FB NC 8 13 FB NC 7 14 NC NC 6 15 NC NC 5 16 EN