Portable systems take advantage of small footprint battery charger and regulator ICs.
Small outline packages now house controller ICs that operate as battery chargers as well as switchmode converters powering systems with up to 2.2A peak loads. This edition of Analog Feedback describes a Lithium-ion (Li-ion) battery charger in an 8-pin MSOP, buck regulator in 8-pin SO8 that can provide 2.2A peak, and a step-down regulator in an 8-pin MSOP for Li-ion battery-powered applications.
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