LT3431IFE#TRPBF , Buck Switching Regulator IC Positive Adjustable 1.219V 1 Output 3A (Switch) 16-TSSOP (0.173", 4.40mm Width) Exposed Pad. we specialize in Linear Technology LT3431IFE#TRPBF electronic components. LT3431IFE#TRPBF can be shipped within 24 hours after order.