Automotive Power Management
Today’s light vehicles can have upwards of a hundred-plus modules to support the growing number of electronic functions. Each one of these modules has specific power requirements.
Power Management ICs (PMICs)
Multiple-output power management ICs (PMICs) are gaining traction for automotive embedded power tasks. Automotive power management designs are becoming increasingly demanding for multiple reasons, including the need for low quiescent current, wide operating temperature range, strict EMC controls, reduced transients, constrained space, Functional Safety, and parts-per-billion (PPB) quality levels - attributes that are all expected by OEMs.
Switched-Mode Power Supplies (SMPS)
Switched mode power supplies, or SMPS, use solid-state switches to convert an unregulated DC input voltage, to a regulated and smooth DC output voltage, at different voltage levels. The input supply can be a true DC voltage from a battery or solar panel, or a rectified DC voltage from an AC supply using a diode bridge along with some additional capacitive filtering.