MPQ5472-AEC1 3-16V, 12A, 500kHz Buck Converter QFN-26

MPQ5472-AEC1 3-16V, 12A, 500kHz Buck Converter QFN-26

Key Specifications

Features

• Wide 3V to 16V Input Voltage (VIN) Range
• Adaptive Constant-On-Time (COT) Control for Ultra-Fast Transient Response
• Two High-Efficiency Step-Down Converters o Buck 1: 12A DC/DC Converter, 15mΩ/5mΩ o Buck 2: 12A DC/DC Converter, 15mΩ/5mΩ FEATURES
• Bucks 1/2 Support Up to 24A Peak Current in Dual-Phase, Single-Output Mode
• Remote Voltage Sense
• 1% Output Voltage (VOUT) Accuracy
• Configurable Switching Frequency (fSW): 500kHz, 750kHz, 1MHz, 1.25MHz, or 2MHz
• VOUT, Output Current (IOUT), and Junction Temperature (TJ) Monitoring via the I2C
• Selectable Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode, Adjustable Frequency, and Current Limit via the I2C
• I2C-Configurable Reference Voltage (VREF) with Slew Rate Control

Applications

• Automotive Infotainment
• Automotive Smart Cockpits
• Automotive Advanced Driver-Assistance Systems (ADAS)

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.
• AEC-Q100 qualification suits this part to automotive rails.
• Package QFN-26 — check the land pattern in the datasheet before layout.

Common Questions