MIC94355 Datasheet, Micrel Semiconductor

The MIC943x5 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection) to a regulated output voltage..

where a DC/DC switching converter is required to lower or raise a battery voltage but where switching noise cannot be to.

Features The MIC943x5 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection) to a regulated output voltage. This is important for applications where a DC/DC switching converter .