MPQ4436GRE-AEC1-P

The MPQ4436 is a frequency programmable, synchronous, step-down switching regulator with integrated internal high side and low-side power MOSFETs in QFN-20 (4mmx4mm) package. It provides 6A (or less) of highly efficient output with current mode control for fast loop response. The wide 3.3V to 45V input range accommodates a variety of step-down applications in an automotive input environment. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency in light-load conditions to reduce the switching and gate driving losses. Frequency foldback helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High-duty cycle and low dropout mode are provided for the automotive cold crank condition. Typical applications include automotive infotainment, automotive clusters, advanced driver assistance systems and industrial power systems.

• AEC-Q100 Grade-1 qualified, non frequency spread spectrum (FSS) version
• 1.7µA low shutdown supply current, 18µA sleep mode quiescent current
• Internal 48mohm high-side and 20mohm low-side MOSFET
• 350KHz to 530KHz programmable switching frequency for car battery applications
• Synchronize to external clock, multi-phase capability, out-of-phase synchronized clock output
• Open-drain power good signal indicates that the output is within 93% to 106% of its nominal voltage
• Fixed output options (3.3V, 5V)
• Symmetric VIN for low EMI, power good output, external soft start
• Selectable advanced asynchronous mode (AAM) or forced continuous conduction mode (FCCM)
• 100ns minimum on time, low dropout mode, hicc-up over-current protection