The LM2590HV-AQ regulator is a monolithic integrated circuitwhich provides all the acTIve funcTIons for a step-down(buck) switching regulator, and is capable of driving a 1 Ampload with excellent line and load regulaTIon. TheLM2590HV-AQ is available in fixed output voltages of 3.3V,5.0V, as well as an adjustable output version.