The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.
●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 × 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 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA 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.
●The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.
●For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
● Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
● 300kHz to 2MHz Switching Frequency
● 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
● Synchronizes to External Clock
● Adjustable Slow Start/Sequencing
● UV and OV Power Good Output
● –40°C to 150°C Operating Junction Temperature Range
● Thermally Enhanced 3mm × 3mm 16-pin QFN
● Pin Compatible to TPS54318
● APPLICATIONS
● Low-Voltage, High-Density Power Systems
● Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
●LCD Displays, CPE Equipment
●SWIFT, SwitcherPro are trademarks of Texas Instruments.
