ACT2861QI
Rev 2.0, 27-Apr-2018 30V Buck-Boost Charger with Integrated MOSFETs and OTG
GENERAL DESCRIPTION
BENEFITS and FEATURES The ACT286x is a buck-boost charger with 4 integrated
MOSFETs. It offers a high efficiency, low component
counts, compact solution for 2 to 5 cell battery charging
application. It can operate from an input voltage range
from 3.9V to 29V.
The 4 internal low resistance NMOS switches minimize
the size of the application circuit and reduce power
losses to maximize efficiency. Internal high side gate
drivers, which require only the addition of two small
external capacitors, further simplify the design process.
An advanced switch control algorithm allows the buckboost converter to maintain output voltage regulation
with input voltages that are above, below or equal to the
output voltage. Transitions between these operating
modes are seamless and free of transients and
subharmonic switching.
The ACT286x has been optimized to reduce input
current in shipping, shutdown, and standby for
applications which are sensitive to quiescent current
draw, such as battery-powered devices.
Both the input side and output side voltages and …
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