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 .

The HM3440 is high efficiency, fixed frequency, Buck-Boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The devices are suitable for single lithium-ion, multicell alkaline or NiMH applications where t.

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