Voltage-Regulator Solution Integrates MOSFETs And Driver IC

The new SiC769 integrates high-side and low-side n-channel MOSFETs plus a full-featured MOSFET driver IC in a PowerPAK MLF6x6 package. Available in two versions tailored for 3.3-V or 5-V controllers, the new SiC769 is fully compliant with the DrMOS specification for voltage regulators (VRs) in servers and desktop computers, graphics boards, workstations, game consoles, and other high-power CPU-based systems. The device enables operating frequencies in excess of 1 MHz, which can reduce the size and cost of multi-phase VR topologies. It operates from an input voltage range of 3 V to 16 V and delivers up to 35 A of continuous output current. Its integrated power MOSFETs are optimized for output voltages in the range of 0.8 V to 2.0 V, with a nominal input voltage of 12 V. The SiC769 can also deliver very high power at a 5-V output for ASIC applications. The gate driver IC accepts a single PWM input from the VR controller and converts it into the high- and low-side MOSFET gate drive signals. The PWM input is compatible with all controllers and especially designed to support controllers with a tri-state PWM output function. Samples and production quantities of the SiC769 are available now, with a lead time of 10 weeks for larger orders. Pricing in 1000-piece quantities is $2.40. VISHAY INTERTECHNOLOGY INC., Malvern, PA. (605) 665-9301.