HM3440 Datasheet - H&M semi

HM3440 Synchronous Buck-Boost DC/DC Regulator

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 the output voltage is within the battery voltage ra.

HM3440 Features

* Synchronous Rectification: Up to 95% Efficiency Single Inductor Fixed Frequency Operation with Battery Voltages Above, Below or Equal to the ： Output Quiescent Current 1mA (50uA low power mode: mode pin high) Up to 1A Continuous Output Current 2.7V to 5.5V Input and Output Voltage range Programmable

HM3440-HMsemi.pdf