The MP100 is a compact, inductor-less, good-efficiency, off-line regulator. It steps down the AC line voltage to an adjustable DC output. It is a simple solution to provide a bias voltage to ICs in off-line applications. Its integrated smart-control system uses AC line power only when necessary, thus minimizing device losses to achieve good efficiency. This device can help system designs meet new standby power specifications. The MP100 provides various protections, such as over-current protection, short-circuit protection, VD over-voltage protection, VD under-voltage lockout, and thermal shutdown. The MP100 is available in a SOIC8E package.