APW7145 SOP8

توضیحات

3A, 12V, Synchronous-Rectified Buck Converter

The APW7145 is a 3A synchronous-rectified Buck converter with integrated 55mW power MOSFETs. The
APW7145, designed with a current-mode control scheme,
can convert wide input voltage of 4.3V to 14V to the output
voltage adjustable from 0.8V to VIN to provide excellent
output voltage regulation.
For high efficiency over all load current range, the
APW7145 is equipped with an automatic Skip/PWM mode
operation. At light load, the IC operates in the Skip mode,
which keeps a constant minimum inductor peak current,
to reduce switching losses. At heavy load, the IC works in
PWM mode, which inductor peak current is programmed
by the COMP voltage, to provide high efficiency and excellent output voltage regulation.
The APW7145 is also equipped with power-on-reset, softstart, soft-stop, and whole protections (under-voltage,
over-voltage, over-temperature, and current-limit) into a
single package. In shutdown mode, the supply current
drops below 3mA.