LM20343MHX/NOPB , Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 20-TSSOP (0.173", 4.40mm Width) Exposed Pad. we specialize in Hotenda LM20343MHX/NOPB electronic components. LM20343MHX/NOPB can be shipped within 24 hours after order.