The HT6099 is an ultra-low quiescent current synchronous Boost converter. 0.9V to 5.2V operating input voltage is suitable for Li-Mn battery, NiMH and Li-Ion rechargeable batteries. The 1uA (TYP) quiescent current maximizes the light load efficiency and also increases the effective battery operation time. In addition, the high-side synchronous rectifier provides output disconnect feature which minimizes unnecessary current drawn from the battery during shutdown mode. 

The HT6099 is able to deliver 300mA output current from 3.3V to 5V conversion, and achieves up to 91% efficiency at 200mA load. The device offers down mode where the desired output voltage is regulated even when input voltage is higher than the output. In addition, when the input voltage is 300mV above the output voltage set point, the device enters pass-through mode. 

The HT6099 supports true shutdown function when it is disabled, which disconnects the load from the input supply to reduce the current consumption. The HT6099 offers both adjustable output voltage and fixed output voltage versions. It is available in Green WLCSP-1.22*0.83-6B and TDFN-2*2-6AL packages.