The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x 3mm thermally enhanced QFN package. The TPS54319 provides accurate regulation for a variety of loads with an accurate 3.0% Voltage Reference (VREF) over temperature. Efficiency is maximized through the integrated 45m MOSFETs and 360mA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 A by entering a shutdown mode. Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency fold back and thermal shutdown protects the device during an over-current condition.