The X Z 161H is a fixed-frequency current-modes Synchronous PWM st ep down converter that is capable of delivering 800mA of output current while achieving peak efficiency of 93%.Under light load conditions, the X Z 161H operates in a proprietary pulse skipping mode that consumes just 24uA of supply current,maximizing battery life in portable applications. The XZ161H operates with a fixed frequency of 1.4MHz, minimizing noise in noise-sensitive applications and allowing the use of small external components. The XZ161H is an ideal solution for applications powered by Li-lon batteries or other portable applications that require small board space.