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ThePC8609is a synchronous step-up converter
with 0.65μAultra low quiescent current. It is designed
for products powered by alkaline battery, NiMH
rechargeable battery, Li-Mn battery or rechargeable
Li-Ion battery, for which high efficiency under light load
condition is critical to achieve long battery life
operation.
ThePC8609step-up converter only consumes
0.65μAquiescent current under light load condition and
canachieve up to 75% efficiency at 10μA load with
fixed output voltage version. It can also support up to
300mA output current from 3.3V to 5V conversion, and
achieve up to 93% efficiencyat 200mA load.
ThePC8609also offers both down mode
andpass-through operation for different applications.In
down mode, the output voltage can still be regulated at
target value even when input voltage is higher than
output voltage. In pass-through mode, the output
voltage follows input voltage. ThePC8609exits
down mode and enters into pass-through mode when
VIN> VOUT+ 0.3V.
ThePC8609supports true shutdown function when it
is disabled, which disconnects the load from the input
supply to reduce the current consumption. The
PC8609offers both adjustable output voltage version
and fixed output voltage versions. It is available
in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL
packages.