STMicroelectronics is aiming at mains power supplies up to 8W, wasting as little as 40mW with no load with VIPer222, a control chip that includes a 730V power switch. Despite coming in a 5 x 6 x 1.75mm SSO10 package with only 10 pins, it can used in a several topologies including: Non-isolated fly-back isolated fly-back ...

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