FPF1903 is a single load switch with P-type MOSFET integrated. The device can perfectly block reverse current from OUT to IN in both enabled and disabled status.The input voltage from 1.2 V to 5.5 V. The supply current is relatively constant with load current 1.5 A, when disabled (EN = low), the power consumption is typically 250 nA, it is suitable for use in most low−voltage, portable electronic devices.FPF1903 is in ultra−small WLCSP−4 package with 0.35mm pin pitch.