ROHM has developed a lineup of twelve automotive primary DC/DC converters.

Automotive primary DC/DC converters
The BD9P series is optimized for ADAS sensors, cameras, and radars, along with car infotainment and instrument clusters.
The devices ensure stable operation during battery input voltage fluctuation, reducing output overshoot to allow the elimination of the  the need for additional output capacitors typically required to reduce overshoot voltages.

In addition, adopting a new control method makes it possible to achieve both, high efficiency and fast load response (which are in a trade-off relationship).

The DC/DC converters offer a 92% power conversion efficiency at heavy loads (at 1A output current), but also 85% efficiency at light loads (1mA), and thus achieve class-leading efficiency across the entire load range.
This reduces power consumption, which leads to a reduction in CO2 emissions, and the parasitic discharge of the battery is also reduced.
Combining the devices  with the BD9S series of secondary DC/DC converters cascaded to the subsequent stage allows users to configure faster, more efficient automotive power supply circuits.
Reference designs are also available on ROHM official website. Utilizing reference boards, tools, and ROHM’s free web simulation tool “ROHM Solution Simulator” it is possible to perform simulations close to actual conditions, significantly reducing application design resources.