1FEATURES DESCRIPTION 2• Two 45-mΩ (typical) MOSFETs for High The TPS54319 device is a full featured 6 V, 3 A, Efficiency at 3-A Loads synchronous step down current mode converter with two integrated MOSFETs. • 300kHz to 2MHz Switching Frequency • 0.8 V ± 3.0% Voltage Reference Over The TPS54319 enables small designs by integrating Temperature (0°C to 85°C) the MOSFETs, implementing current mode control to reduce external component count, reducing inductor • Synchronizes to External Clock size by enabling up to 2 MHz switching frequency, • Adjustable Slow Start/Sequencing and minimizing the IC footprint with a small 3mm x • UV and OV Power Good Output 3mm thermally enhanced QFN package. • –40°C to 150°C Operating Junction The TPS54319 provides accurate regulation for a Temperature Range variety of loads with an accurate ±3.0% Voltage • Thermally Enhanced 3mm × 3mm 16-pin QFN Reference (VREF) over temperature. • Pin Compatible to TPS54318 Efficiency is maximized through the integrated 45mΩ MOSFETs and 360mA typical supply current. Using APPLICATIONS the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode. • Low-Voltage, High-Density Power Systems • Point-of-Load Regulation for Consumer Under voltage lockout is internally set at 2.6 V, but Applications such as Set Top Boxes, LCD can be increased by programming the threshold with Displays, CPE Equipment a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start SIMPLIFIED SCHEMATIC pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage. vertical spacer Frequency fold back and thermal shutdown protects vertical spacer the device during an over-current condition. The TPS54319 is supported in the SwitcherPro™