FC4B22180L fet equivalent, gate resistor installed dual n-channel mos fet.
y Low source-source ON resistance:Rss(on) typ. = 9.4 mΩ（VGS = 4.5 V) y CSP（Chip Size Package) y RoHS compliant (EU RoHS / MSL:Level 1 compliant) * Marking Symbol: 17 .
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