DESCRIPTION
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