LT3519EMS-2#PBF , LED Driver IC 1 Output DC DC Regulator SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 750mA (Switch) 16-MSOP. we specialize in Linear Technology LT3519EMS-2#PBF electronic components. LT3519EMS-2#PBF can be shipped within 24 hours after order.