The MIC2142 is a micropower boost switching regulator housed in a SOT23-5 package. The input voltage range is between 2.2V to 16V, making the device suitable for one-cell Li Ion and 3 to 4-cell alkaline/NiCad/NiMH applications. The output voltage of the MIC2142 can be adjusted up to 22V. The MIC2142 is well suited for portable, space-sensitive applications. It features a low quiescent current of 85A, and a typical shutdown current of 0.1A. It's 330kHz operation allows small surface mount external components to be used. The MIC2142 is capable of efficiences over 85% in a small board area.