Smart switcher for smart meters

 Texas Instruments (TI) introduced a 700-V switcher with quiescent current of less than 100 uA. The UCC28880 controller integrates a 700-V power MOSFET and high-voltage current source, increasing overall energy efficiency of “always-on” non-isolated power systems with output currents up to 100 mA, such as smart meters, home automation equipment and white goods.
Key features and benefits

Industry’s lowest power consumption
Reduces application size and overall system cost
Excellent system performance under excessive currents
Thermal protection
Increased creepage and clearance.
An offline, AC/DC reference design based on the UCC28880 (PMP8550) enables designers to quickly design a low-cost, low-power non-isolated high-side buck converter with a total solution size of 38 mm by 32 mm by 22 mm that supports 13 V, while generating up to 100 mA of output current.