This part is a kind of semiconductor called ME4542.
Function of this product has N- and P-Channel 30-V (D-S) MOSFET.
Manufacturers : Matsuki
Image and pinout :
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www.DataSheet4U.com ME4542 N- and P-Channel 30-V (D-S) MOSFET GENERAL DESCRIPTION The ME4542 is the N- and P-Channel logic enhancement mode power field effect transistors are produced using high cell density , DMOS trench technology. This high density process is especially tailored to minimize on-state resistance. These devices are particularly suited for low voltage application such as cellular phone and notebook computer power management and other battery powered circuits where high-side switching, and low in-line power loss are needed in a very small outline surface mount package. FEATURES ● 30V/6.9A,RDS(ON)=25mΩ@VGS=10V (N-Ch) ● 30V/5.8A,RDS(ON)=40mΩ@VGS=4.5V (N-Ch) ● -30V/-6.1A,RDS(ON)=35mΩ@VGS=-10V (P-Ch) ● -30V/-5.1A, RDS(ON)=58mΩ@ VGS=-4.5V (P-Ch) ● Super high [ ... ]