FPF1321UCX

The FPF1320/21 is a Dual−Input Single−Output (DISO) load switch
consisting of two sets of slew−rate controlled, low on−resistance,
P−channel MOSFET switches and integrated analog features.
The slew−rate−controlled turn−on characteristic prevents inrush
current and the resulting excessive voltage droop on the power rails.
The input voltage range operates from 1.5 V to 5.5 V to align with the
requirements of low−voltage portable device power rails. FPF1320/21
performs seamless power−source transitions between two input power
rails using the SEL pin with advanced break−before−make operation.
FPF1320/21 has a TRCB function to block unwanted reverse
current from output to input during ON/OFF states. The switch is
controlled by logic inputs of the SEL and EN pins, which are capable
of interfacing directly with low−voltage control signals (GPIO).
FPF1321 has 65 on−chip load resistor for output quick discharge
when EN is LOW.
FPF1320/21 is available in 1.0 mm x 1.5 mm WLCSP, 6−bump,
with 0.5 mm pitch. FPF1321B is available in 1.0 mm x 1.5 mm
WLCSP, 6−bump, 0.5 mm pitch with backside laminate.