IR’s Latest XPhase Chipset Reduces External Part Count by 25 Percent and Shrinks Powertrain Footprint by 45 Percent

IR's Latest XPhase Chipset Reduces External Part Count by 25 Percent and Shrinks Powertrain Footprint by 45 Percent

IR has expanded the XPhase family of scalable multiphase converter chipsets with the introduction of the IR3500 Control IC and IR3505 Phase IC.

The new XPhase chipset provides a full-featured and flexible way to implement a complete Intel or AMD CPU power solution, and with simple six-bit voltage programming, the IR3500 is easily configured for use in general purpose, multiphase applications.

The latest XPhase chipset reduces external component count by 25 percent, which combined with a higher switching frequency, reduces the powertrain area by 45 percent in a five-phase design compared to previous generation technology. The solution features the IRF6622 and IRF6628 DirectFET power MOSFETs to achieve a two percent efficiency improvement compared to competing solutions.

The XPhase chipset features programmable dynamic voltage identification (VID) slew rate, programmable VID offset and load line output impedance, hiccup over-current protection with delay to prevent false triggering, and simplified power good output to indicate correct operation and prevent false triggering.