MPQ8645P 3.1-16V, 30A Synchronous Step-Down Converter QFN-25

MPQ8645P 3.1-16V, 30A Synchronous Step-Down Converter QFN-25

Key Specifications

Features

• PMBus 1.3 Compliant
• Scalable Multi-Phase Operation
• 3.1V to 16V with External 3.3V VCC Bias 4V to 16V with Internal Bias or External 3.3V VCC Bias
• 30A Continuous Output Current per Phase
• Low RDS(ON) Integrated Power MOSFETs
• Lossless and Accurate On-Die Current Sensing
• Adaptive COT for Ultrafast Transient Response
• Stable with Zero-ESR Output Capacitors
• 0.5% Reference Voltage Over 0°C to 70°C Junction Temperature Range
• Output Voltage True Remote Sense

Applications

• Telecom and Networking Systems
• Base Stations

Design Notes

• The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
• Keep the input loop short — high di/dt at the switch node sets conducted EMI.
• Power switches are integrated, so the thermal path is the PCB copper under the pad.
• Package QFN-25 — check the land pattern in the datasheet before layout.

Common Questions