The Vishay SIC779CD-T1-GE3 is a DrMOS (Driver plus MOSFET) half-bridge rated for 40 A continuous output per channel, designed for synchronous buck converter stages in high-current POL (point-of-load) rails.
Package, footprint, and thermal interface
Housed in the PowerPAK® MLP66-40 (6 mm × 6 mm, 40-pin QFN-style), the exposed paddle on the underside is the primary thermal path — the PCB copper area under the paddle and the number of thermal vias set the junction-to-board thermal resistance, which governs derating above 25 °C.
Protection and interface
On-chip fault protection includes over-temperature, shoot-through prevention, and under-voltage lockout (UVLO) on the supply rail — the shoot-through block inserts a dead-time between high-side and low-side transitions, so the external PWM signal does not need to guarantee non-overlap.