InnoSwitch™3-EP off-line CV/CC QR flyback switcher IC with Integrated primary switch, synchronous rectification and FluxLink feedback family of ICs dramatically simplifies design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. This family combines primary/secondary controllers and safety-rated feedback into a single IC. InnoSwitch3-EP family devices incorporate multiple protection features including line over and undervoltage protection, output overvoltage and overcurrent limiting and overtemperature shutdown. Incorporates multi-mode quasi-resonant/CCM flyback controller, high-voltage switch, secondary-side sensing and synchronous rectification driver. Devices are available with standard and peak power delivery options and used auto-restart protection behaviours. Used in auxiliary, standby and bias power supplies for appliances, computers, consumer products, utility meter, smart grid and industrial power supplies.