The TPS54202H is a
4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device
includes two integrated switching FETs, internal loop compensation and 5-ms internal
soft start to reduce component count.By integrating the MOSFETs and
employing the SOT-23 package, the TPS54202H achieves the high power
density and offers a small footprint on the PCB.Advanced Eco-mode implementation
maximizes the light load efficiency and reduces the power loss.Cycle-by-cycle current limit in both
high-side MOSFET protects the converter in an overload condition and is enhanced by
a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup
mode protection is triggered if the overcurrent condition has persisted for longer
than the present time.