MPQ8633A-HGLE-Z

MPQ8633A-HGLE-Z is a fully integrated, high frequency, synchronous step-down converter. It offers a very compact solution that can achieve up to 12A of output current (IOUT) across a wide input voltage (VIN) range, with excellent load and line regulation. The MPQ8633A-H operates at high efficiency across a wide IOUT load range. Internally compensated constant-on-time (COT) control provides fast transient response and eases loop stabilization. The selectable switching frequency (fSW) can be set to 600KHz, 800KHz, or 1000KHz by configuring the MODE pin. This maintains a constant fSW, regardless of VIN and the output voltage (VOUT). During start-up, the internal soft-start timer (tSS) (1ms) ramps up VOUT in a controlled manner. tSS can be increased by adding a capacitor on the TRK/REF pin. An open-drain power good (PG) signal indicates whether VOUT is within its nominal voltage range. Applications include telecommunication systems, networking systems, servers and base stations.

• Wide input voltage (VIN) range, 2.7V to 16V with external 3.3V bias
• 4V to 16V with internal bias or external 3.3V bias
• Differential output voltage (VOUT) remote sense, configurable accurate current limit (ILIMIT)
• Integrated low RDS(ON) power MOSFETs, proprietary switching loss reduction technique
• Adaptive constant-on-time (COT) control for ultrafast transient response
• Stable with zero ESR output capacitor, excellent load regulation, VOUT tracking, VOUT discharge
• PGOOD clamped low during power failure, configurable soft-start time (tSS) from 1ms
• Pre-biased start-up, 600kHz, 800kHz or 1000kHz selectable switching frequency (fSW)
• Non-latch OCP, UVP, OVP, UVLO protection, and thermal shutdown
• Available in QFN-21 package

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.