Maxim has introduced 3A controller for supercapacitors used to back-up battery-powered low-voltage power rails. Called MAX38889, it is rated for operation between 2.5V and 5.5V on the supplied rail and 500mV to 5.5V on the capacitor. The converter bucks down from a powered voltage rail to the supercapacitor and, when the power source is removed, ...
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