The LT®3757 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. It can be confi gured as either a boost, fl yback, SEPIC or inverting converter. The LT3757 drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fi xed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages.