The LTC® 1735 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using a fixed frequency architecture. Burst ModeTM operation provides high efficiency at low load currents. The precision 0.8V reference is compatible with future microprocessor generations. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values.