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
(EN)
