ROHM Semiconductor has announced the development of a configurable power supply solution that integrates the PMIC BD968xx-C Series with the DrMOS BD96340MFF-C, designed for automotive SoCs powering applications such as ADAS (Advanced Driver Assistance Systems), DMS (Driver Monitoring Systems), and sensing cameras.
In recent years, advancements in ADAS, enhanced in-vehicle camera capabilities, and ECU integration have driven higher performance requirements for automotive SoCs, accelerating the transition towards domain controller-based architectures. Consequently, power supply designs must now support low-voltage, high-current operation while ensuring advanced power sequencing and high reliability.
Conventional power supply architectures often require extensive customization to accommodate variations across SoC manufacturers and generations, frequently resulting in redesigns during model rollouts. This has increased both development timelines and verification efforts. To overcome these challenges, ROHM developed this solution around a “Configurable” design concept, enabling flexible adaptation to diverse SoC power requirements.
This solution enables scalable power supply designs capable of supporting a broad range of SoCs, from low-end to high-end, through flexible combinations of main configurable PMICs, sub PMICs, and DrMOS devices tailored to specific application and performance requirements. This scalable architecture helps reduce development effort during platform expansion while improving power efficiency and promoting design reuse.
All PMICs are designed to operate within an input voltage range of 2.7 V to 5.5 V. The BD96803Qxx-C and BD96811Fxx-C are optimized for standalone use with low-end SoCs, while the BD96805Qxx-C and BD96806Qxx-C, when paired with the DrMOS BD96340MFF-C, support the low-voltage, high-current requirements of high-performance SoCs. The PMICs are housed in wettable flank QFN packages, and the DrMOS is packaged in a flip-chip QFN format. All devices are AEC-Q100 qualified, ensuring high reliability for automotive applications.
Application Examples
- High-Power SoCs: ADAS, DMS, Cockpit integration systems, etc.
- Mid-Power SoCs: Surround view systems, Parking assist systems, etc.
- Low-Power SoCs: Sensing cameras, Body control systems, Various sensor control systems, etc.
