The TPS54519 device is a full featured 6 V, 5 A, synchronous step down current mode converter with two integrated MOSFETs.
●The TPS54519 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.
●Efficiency is maximized through the integrated 30mΩ MOSFETs and 350µA 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 overcurrent condition.
●The TPS54519 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 30 mΩ (typical) MOSFETs for high efficiency
●at 5-A loads
● 200kHz to 2MHz Switching Frequency
● 0.6 V Voltage Reference With ± 1% Initial Accuracy
● Adjustable Slow Start / Sequencing
● UV and OV Power Good Output
● Low Operating and Shutdown Quiescent Current
● Safe Start-up into Pre-Biased Output
● Cycle by Cycle Current Limit, Thermal and Frequency
●Fold Back Protection
● –40°C to 140°C Operating Junction
●Temperature Range
● Thermally Enhanced 3mm × 3mm 16-pin QFN
