MPQ8633BGLE-Z

The MPQ8633B is a fully integrated, highfrequency, synchronous, buck converter. It
offers a very compact solution that achieves up
to 20A of output current with excellent load and
line regulation over a wide input supply range.
The MPQ8633B operates at high efficiency
over a wide output current load range.
The MPQ8633B adopts an internally
compensated constant-on-time (COT) control
mode that provides fast transient response and
eases loop stabilization.
The operating frequency can be set to
600kHz, 800kHz, or 1000kHz easily with MODE
configuration, allowing the MPQ8633B
frequency to remain constant regardless of the
input and output voltages.
The output voltage start-up ramp is controlled
by an internal 1ms timer. It can be increased by
adding a capacitor on TRK/REF. An open-drain
power good (PGOOD) signal indicates if the
output is within its nominal voltage range.
PGOOD is clamped at around 0.7V with an
external pull-up voltage when the input supply
fails to power the MPQ8633B.
Full protection features include over-current
protection (OCP), over-voltage protection
(OVP), under-voltage protection (UVP), and
over-temperature protection (OTP).
The MPQ8633B requires a minimal number of
readily available, standard, external
components and is available in a QFN-21
(3mmx4mm) package.