Power management ICs enable lower power systems

The BD99991GW PMIC supports the core power rails required by the Skylake platform and supports Intel’s IMVP8 power management interface, while the BD99992GW is designed to provide the additional ten power rails required for the rest of platform (RoP).

Compared with discrete solutions, ROHM’s dual PMIC chipset reduces the number of peripheral components by 18% and mounting area by 33%, contributing to greater space savings and increased system size reduction. Matching the PMICs with ROHM optimised discrete components can enable further reduction in power consumption, mounting area and number of external parts.

“We have been shipping the previous generation BD99990GU PMIC for the Broadwell platforms for a couple of years. These new PMICs not only inherit the advantages of the BD99990GU, but also feature design enhancements optimised for Intel’s latest platform (Skylake).The BD99991GW and BD99992GW are offered in a sealed WL-CSP (Wafer Level Chip Scale Package) form factor well suited for Type 4 PCBs that reduce footprint by 44% over our previous IC, allowing for even further system size reduction,” said Jun Iida, Director of LSI Product Development at ROHM. “In addition to the required power functions, other features, such as LED driver, GPIOs, A/D converter, multiple clock generators and coin battery charger, are built in. This contributes to significantly reduce the customers’ design efforts.”

In addition to these latest ICs, ROHM offers PMICs optimised for a variety of applications. ROHM also provides comprehensive support through a network of 11 design centres located throughout the globe.

Going forward, ROHM will continue to leverage its expertise in the analogue domain to develop high performance products and solutions that contribute to energy savings and increased safety.