The TPS57114-Q1 device is a full-featured 6-V, 4-A, synchronous step-down current-mode
converter with two integrated MOSFETs.
The TPS57114-Q1 device 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 3-mm × 3-mm thermally
enhanced QFN package.
The TPS57114-Q1 device provides accurate regulation for a variety of loads with an
accurate ±1% voltage reference (Vref) over temperature.
Efficiency is maximized through the integrated 12-mΩ MOSFETs and 515-µA typical supply
current. Using the enable pin, shutdown supply current is reduced to 5.5 µA by entering a shutdown
The internal undervoltage lockout setting is 2.45 V, but programming the threshold with a
resistor network on the enable pin can increase the setting. The slow-start pin controls the
output-voltage start-up ramp. An open-drain power-good signal indicates the output is within 93% to
107% of its nominal voltage.
Frequency foldback and thermal shutdown protect the device during an overcurrent
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