Suppressing heat generation makes it possible to adopt a surface mount package without requiring an external heat sink, simplifying thermal designs considerably while contributing to greater space savings. In addition, integrating all system power supplies required for car audio systems on a single chip – including for USB with a cable impedance function – contributes to a lighter design load.

In recent years, along with the continued computerization comes a greater need for reducing power consumption and improving fuel consumption in vehicles. However, at the same time the growing demand for power consumption to meet the expanding functionality of car infotainment systems (i.e USB and Bluetooth) is becoming of increased concern.

And conventional car audio system power supply ICs, although are generally easy to design, often are centered around a linear regulator which suffers from poor efficiency, reducing the operating efficiency of the entire system. In response, ROHM's DC/DC converter-based system power supply IC provides much greater efficiency, enabling support for the latest high-performance car audio systems