ROHM: highly integrated PMIC optimized for NXP i.MX 8M applications processor

ROHM announced the availability of a programmable system power management IC (PMIC) optimized for NXP’s i.MX 8M family of applications processors that excels in processing audio, video, and graphics in a wide range of applications, from home audio/video to industrial automation and mobile computing. BD71837MWV integrates all power rails required by i.MX 8M processors and system peripherals. In addition to a high-efficiency buck converter that provides a maximum conversion efficiency of 95%, most protection functions required by the system are included, making it possible to significantly reduce the development time, decrease size, and simplify system design.

In recent years the emergence of IoT has allowed electronic devices such as smart speakers to interact with users through voice commands for streaming audio/video. NXP’s i.MX 8M family integrates up to 4 ARM Cortex-A53 and Cortex-4 cores and offers flexible memory options along with a high-speed connectable user interface. Additional features include full 4K Ultra HD and HDR video functionality, high-fidelity audio playback, up to 20 audio channels, and support for DSD512 audio. This highly integrated design combines audio, video, and machine learning in a single platform to provide seamless connectivity and an intuitive experience.

 

The BD71837MWV leverages ROHM’s analog power technology to achieve the ideal power supply system for driving i.MX 8M processors. Convenience, ease of use, and a rich user experience continue to drive the demand for more powerful SoC solutions. However, high-performance applications processing graphics, video and audio often place conflicting demands on power supply and thermal design, calling for higher power in a smaller footprint along with high peak efficiency yet low standby power consumption (the latter driven by regulations as well as use cases such as always-on devices with voice interface).

The BD71837MWV was designed to address these demands while also achieving the lowest system bill of materials for power management. In addition, the compact form factor reduces the number of external components, decreasing PCB area by 45% (in the case of adopting a Type-3 one-sided PCB). Thanks to software programmability and one-time programmability, ROHM’s PMIC can be easily adapted for a wide variety of system designs.


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