HM3440 regulator equivalent, synchronous buck-boost dc/dc regulator.
Synchronous Rectification: Up to 95% Efficiency Single Inductor Fixed Frequency Operation with Battery Voltages Above, Below or Equal to the
： Output
Quiescent Current 1m.
where the output voltage is within the battery voltage range.
The switching frequencies up to 1.5 MHz could be fixed by .
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