1. PMP4440: 1W Isolated DC-DC Module Power _China Power Design Service Reference DesignTI PartsV in PoOutputTopologyEff. 5V Vin, isolated 5V 200mA output Flybuck Module Power TPS550105V±10%1W 5V@200mA Flybuck>86% Features Isolated interface Flybuck TM power supply with single channel output; High efficiency of >86% at full load; Good line and load regulation; Low output ripple voltage; Low cost, minimized component numbers; Small PCB size, 19.8mm*9mm*5.8mm, 2 layer design Pin to pin compatible with industry standard SIP modules, such as Mornsun power module ‘B0505LS-1WR2’ Better performance than ‘B2405LS-1WR2’ Applications PLC, metering etc. Industrial Telecom Aux power

2. PMP4440 Schematic

3. Solution comparison with Mornsun module Line Regulation* : Test condition in Mornsun, the deviation of input voltage is only 1% But in TI that extended to 10% Spec.SolutionsEfficiency Line Regulation* Load Regulation Vo Ripple(mV) 5Vin 1W ±5V/200mA PMP4440>86%±0.9%±3.6%25 B0505LS-1WR2 80.0%(Typ.)±1.2%12%(Typ.)30(Typ.) Advantage  Higher efficiency  Better line and load regulation;  100kHz to 2MHz operation frequency can be synchronized ---Eliminating beat noise and Avoiding a sensitive frequency band  Adjustable Soft Start ---Some modules will have a high inrush current  Full Features --- Adjustable UVLO, Adjustable SS, Fault Indicator, EN, OCP, OTP  All Designs are Pin-to-Pin compatible, no need for PCB re-layout  Lower cost