The MPQ8626 is a fully integrated, highfrequency, synchronous, buck converter. The MPQ8626 offers a very compact solution that achieves up to 6A of output current with excellent load and line regulation over a wide input supply range. The MPQ8626 operates at high efficiency over a wide output current load range. The MPQ8626 adopts an internally compensated constant-on-time (COT) control that provides fast transient response and eases loop stabilization. The operating frequency can be set to 600kHz, 1100kHz, or 2000kHz easily with MODE configuration, allowing the MPQ8626 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 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 MPQ8626. Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP). The MPQ8626 requires a minimal number of readily available, standard, external components and is available in a QFN-14 (2mmx3mm) package. FEATURES • Wide Input Voltage Range o 2.85V to 16V with External 3.3V VCC Bias o 4V to 16V with Internal VCC Bias or External 3.3V VCC Bias • 6A Output Current • Programmable Accurate Current Limit Level • Low RDS(ON) Integrated Power MOSFETs • Proprietary Switching Loss Reduction Technique • Adaptive Constant-On-Time (COT) for Ultrafast Transient Response • Stable with Zero ESR Output Capacitor • 0.5% Reference Voltage Over 0°C to +70°C Junction Temperature Range • 1% Reference Voltage Over -40°C to +125°C Junction Temperature Range • Selectable Forced CCM or Pulse-Skip Operation • Excellent Load Regulation • Output Voltage Tracking • Output Voltage Discharge • PGOOD Active Clamped at Low Level during Power Failure • Programmable Soft-Start Time from 1ms and Up • Pre-Bias Start-Up • Selectable Switching Frequency from 600kHz, 1100kHz, and 2000kHz • Non-Latch for OCP, OVP, UVP, OTP, and UVLO • Output Adjustable from 0.6V to 0.9 x VIN Up to 6V Max • Available in a QFN-14 (2mmx3mm) Package APPLICATIONS • Telecom and Networking Systems • Server, Cloud-Computing, Storage • Base Stations • General Purpose Point-of-Load (PoL) • 12V Distribution Power Systems • High-end TV • Game Consoles and Graphic Cards