ANALOG DEVICES LT3759IMSE#PBF

LT®3759 is a wide input range, current mode, DC/DC controller which is capable of regulating either positive or negative output voltages from a single feedback pin. It can be configured as a boost, SEPIC or inverting converter. This drives a low side external N-channel power MOSFET. An internal LDO regulator draws power from VIN or DRIVE to provide up to a 4.75V supply for the gate driver. The operating frequency of this can be set over a 100KHz to 1MHz range with an external resistor, or can be synchronized to an external clock using the SYNC pin. This features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit. A window comparator on the FBX pin reports via the active-low PGOOD pin, providing output voltage status indication. Typical applications are datacom and industrial boost, SEPIC and inverting converters, distributed power supplies, portable electronic equipment, automotive.