GENERAL DESCRIPTION
The STI3470 is a fully integrated, high–efficiency
2.0A synchronous rectified step‐down converter.
The STI3470 operates at high efficiency over a
wide output current load range.
This device offers two operation modes, PWM
control and PFM Mode switching control, which
allows a high efficiency over the wider range of
the load.
The STI3470 requires a minimum number of
readily available standard external components

datasheet : S47-STI3470