¡El MIC2145 is a small size boost switching regulator that can provide over 2.5W of output power. ¡El input voltage range is between 2.4V to 16V, making the device suitable for one-cell Li-Ion and 3- to 4-cell alkaline/NiCad/NiMH applications. ¡El output voltage of the MIC2145 can be adjusted up to 16V. ¡El MIC2145 is well suited for portable, space-sensitive applications. Its typical 450kHz operation allows small surface mount external components to be used. ¡El MIC2145 has a low quiescent current of 200µA, and a typical shutdown current of 0.5µA. ¡El MIC2145 is capable of high efficiencies in a small board area. ¡El MIC2145 features a low-on resistance internal switch that allows it to provide over 2.5W of output power. ¡El peak switch current can be programmed through an external resistor. This allows the user to set the peak switch current at the level where maximum efficiency occurs. It also allows the user to further optimize for efficiency and inductor size by setting the peak current below the level of inductor saturation. ¡El MIC2145 is available in an MSOP-8 and 3mm×3mm MLF™-10L package with an ambient operating temperature range from –40°C to +85°C.