SIC631

The Vishay Dale SIC631 is an integrated power stage solution designed for synchronous buck applications, providing high current, high efficiency, and high power density. Packaged in Vishay’s proprietary 5 mm x 5 mm MLP package, the SiC631 enables voltage regulator designs to deliver up to 50 A continuous current per phase.

Utilizing Vishay’s Gen IV TrenchFET technology, the internal power MOSFETs offer industry benchmark performance, significantly reducing switching and conduction losses. The integrated MOSFET gate driver IC features high current driving capability, adaptive dead-time control, an integrated bootstrap Schottky diode, and zero current detection for improved light load efficiency.

This device supports a wide range of PWM controllers, including tri-state PWM and 5 V PWM logic. A user-selectable diode emulation mode (ZCD_EN#) enhances light load performance, and the device also supports PS4 mode to reduce power consumption during standby states. It is optimized for 19 V input stages and can operate at high frequencies up to 2 MHz.

The SiC631 is suitable for multi-phase VRDs in computing, graphics cards, and memory, as well as Intel IMVP-8 VRPower delivery for VCORE, VGRAPHICS, and VSYSTEM AGENT on Skylake and Kabylake platforms, and VCCGI for Apollo Lake platforms. It is also used in DC/DC VR modules for up to 24 V rail inputs.