L6732 is an adjustable step-down controller produced by ST company. It has synchronous rectification, input voltage range 1.8V-14V, output voltage range 0.6V-14V, programmable high and low side RDS(on) sense over-current protection, soft-start and inhibit, pre-bias start-up capability, master/slave synchronization with 180° phase shift, overvoltage protection, thermal shutdown and other features.