OptiMOS™ single-output full integrated synchronous buck regulator 40 A with SVID and I2C OptiMOS™ IPOL TDA38640A is an easy-to-use, fully integrated, highly efficient 40 A synchronous buck regulator with Intel SVID/I2C compliance. A proprietary fast COT engine enables a fast transient response and reduces the board footprint. TDA38640A offers best-in-class efficiency by using OptiMOS™ FETs, optimized for low-voltage high-current applications. Extensive protection features provide system-level security under fault conditions.