MONOLITHIC POWER SYSTEMS (MPS) MPQ4253AGU-AEC1-P DC-DC Switching Synchronous Buck Regulator, 6 to 36V in, 5.3V/3A out, 350kHz, QFN-26

MPQ4253A is a 36V, step-down converter that supports one Type-A, one Type-C dual USB charging ports for automotive. It integrates a monolithic, step down, switch-mode converter with two USB current-limit switches and charging port identification circuitry for each port. The MPQ4253A achieves 6A of output current, with excellent load and line regulation over a wide input supply range. The USB outputs are fixed as one Type-A port and one Type-C port. Each USB switch is current-limited. The USB1 port supports USB Type-C 5V at 3A DFP mode. The USB2 port supports DCP schemes for battery charging specification (BC1.2), Apple divider 3 mode, and 1.2V/1.2V mode, eliminating the need for outside user interaction. The MPQ4253A buck and USB2 output is always on if EN is high. It requires a minimal number of readily available, standard external components, and is available in a QFN-26 package. Applications include USB dedicated charging ports (DCPs, USB type-C + type-A hybrid charging ports.

• All-in-one type-C + type-A solution
• Type-C auto-enters 1.5A load capability when the type-A port detects a device is plugged -in
• Default frequency spread spectrum based on 480KHz (FREQ = Float)
• Auto-PFM/PWM operation, wide 6V to 36V operating VIN range
• Selectable output voltage: 5.1V, 5.17V, or 5.3V
• 90mV line drop compensation, accurate USB1/USB2 output current limit
• 18mohm/15mohm low internal RDS(ON) buck power MOSFETs
• 18mohm/18mohm low internal RDS(ON) USB1/USB2 power MOSFETs
• 250kHz to 1MHz adjustable frequency, hicc-up current limit for both buck and USB
• Available in a QFN-26 package, available in AEC-Q100 grade 1

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