LT3757 Datasheet PDF

●The LT3757EMSE#PBF is a boost, flyback, SEPIC and Inverting Controller. The wide input range, current mode, DC/DC controller which is capable of generating either positive or negative output voltages. They can be configured as either a boost, flyback, SEPIC or inverting converter. It drives a low side external N-channel power MOSFET from an internal regulated 7.2V supply. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of this can be set with an external resistor over a 100kHz to 1MHz range and can be synchronized to an external clock using the SYNC pin. A low minimum operating supply voltage of 2.9V and a low shutdown quiescent current of less than 1µA, make this ideally suited for battery-operated systems.

● Positive or negative output voltage programming with a single feedback pin

● Current mode control provides excellent transient response

● Programmable operating frequency (100kHz to 1MHz) with one external resistor

● Synchronizable to an external clock

● Internal 7.2V low dropout voltage regulator

● Programmable input under-voltage lockout with hysteresis

● Programmable soft-start