The MIC45404 uses pin strapping to set the output voltage (VOSET0, VOSET1) and switching frequency (FREQ). No external passives are needed, therefore, the external component count is minimized. The logic level of the pins is read and frozen in the internal configuration logic. There are nine output voltages three switching frequency settings. The switching frequency can be set to 400 kHz, 565 kHz, or 790kHz. In order to optimize the performance of the MIC45404, each switching frequency setting is assigned a specific output voltage setting from the nine available selections.