173950378, 173950578 3 MagI C Power Module FDSM Fixed Step Down Regulator Module 6V 28V / 500mA / 3.3V or 5V Output DESCRIPTION FEATURES 3 The FDSM series of the MagI C Power Module family is a Peak efficiency up to 95% fixed output voltage, fully integrated DC-DC power supply Current capability up to 500mA including the switching regulator, inductor and capacitors Input voltage range: 6V to 28V all in one package. Output voltage: 3.3V or 5V Output voltage accuracy: 3% max The module requires no external components for No minimum load required operation, reducing design effort and complexity to a Integrated input and output capacitors minimum. Integrated inductor Low output voltage ripple (typ 10mVpp) The FDSM ensures fast time to market and low Fixed 570kHz switching frequency development costs. Current mode control Pulse skipping for high efficiency at light loads It is pin compatible with the common 78xx linear regulator Internal soft-start series. The high efficiency reduces the power dissipation Thermal shutdown and in many cases a heatsink and assembly parts are Short circuit protection unnecessary. Cycle by cycle current limit Pin compatible with the FDSM power modules series 12V to 3.3V conversion achieves up to 85% efficiency. Operating ambient temperature range: -40C to 85C 12V to 5V conversion achieves up to 90% efficiency. RoHS & REACh compliant Case and potting material UL 94 Class V0 The standard THT (10.5 x 11.6 X 8.5mm) package allows (flammability testing) certified for easy assembly. Complies with EN55032 class B conducted and radiated emissions standard TYPICAL APPLICATIONS Point-of-Load DC-DC applications from 9V, 12V, 15V, 18V and 24V industrial rails Replacement for linear regulator Interface and microcontroller supply General purpose TYPICAL CIRCUIT DIAGRAM 1 3 V V IN OUT VIN VOUT Module NO NEED FOR C NO NEED FOR C IN OUT GND 2 GND GND we-online.com Wrth Elektronik eiSos GmbH & Co. KG Data Sheet Rev. 2.0 May 2019 1/40 173950378, 173950578 3 MagI C Power Module FDSM Fixed Step Down Regulator Module PACKAGE 1 2 3 VIN GND VOUT MARKING DESCRIPTION MARKING DESCRIPTION WE Wrth Elektronik tradename 78 Indicates the compatibility with 78xx linear regulator 173950X78 Order code YY Year WW Calendar week VV Output voltage (3.3V or 5V) PIN DESCRIPTION SYMBOL PIN TYPE DESCRIPTION The supply input pin is a terminal for an unregulated input voltage VIN 1 Power source. There is no need for an external input capacitor. GND 2 Power Ground reference for VIN and VOUT Regulated output voltage. There is no need for an external output VOUT 3 Power capacitor. ORDERING INFORMATION ORDER CODE SPECIFICATIONS PACKAGE PACKAGING UNIT 173950378 28V / 500mA / 3.3Vout version SIP-3 Tube with 42 pieces 173950578 SIP-3 28V / 500mA / 5Vout version Tube with 42 pieces 17800FDSM Eval Board 4.75 to 42VIN / 3.3 & 5VOUT 1 we-online.com Wrth Elektronik eiSos GmbH & Co. KG Data Sheet Rev. 2.0 May 2019 2/40