MPQ8623
DESCRIPTION
The MPQ8623 is a fully integrated, highfrequency, synchronous, buck converter. The MPQ8623 offers a very pact solution that achieves up to 6A of output current with excellent load and line regulation over a wide input supply range. The MPQ8623 operates at high efficiency over a wide output current load range.
The MPQ8623 adopts an internally pensated constant-on-time (COT) control that provides fast transient response and eases loop stabilization.
The operating frequency can be set to 600k Hz, 1100k Hz, or 2000k Hz easily with MODE configuration, allowing the MPQ8623 frequency to remain constant regardless of the input and output voltages.
The output voltage start-up ramp is controlled by an internal 1.5ms timer, which can be increased by adding a capacitor on TRK/REF. An opendrain power good (PGOOD) signal indicates if the output is within its nominal voltage range. PGOOD is clamped to around 0.7V with an external pull-up voltage when the input supply fails to power the...
