Linear Technology Corp. announces the LTC3769, a synchronous step-up DC/DC controller that replaces the boost diode with a high efficiency N-channel MOSFET, increasing efficiency and maximizing output current capability. This controller produces 24 V at up to 5 A output from a 12 V input with up to 98 percent efficiency, making it ideal for automotive, industrial and medical applications where a step-up DC/DC converter must have low heat dissipation in a small solution size.