MPQ4317GRE-33-AEC1-Z

MPQ4317 is a configurable-frequency, synchronous, step down switching regulator with integrated internal high side and low-side power MOSFETs. It provides up to 7A of highly efficient output current (IOUT) with current mode control for fast loop response. The wide 3.3V to 45V input voltage (VIN) range accommodates a variety of step-down applications in automotive input environment. High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce switching and gate driver losses. Frequency foldback helps prevent inductor current (IL) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High duty cycle and low dropout mode are provided for automotive cold-crank conditions. The MPQ4317 is available in a QFN-20 (4mmx4mm) package. Applications include automotive infotainment, automotive clusters, advanced driver assistance systems (ADAS) and industrial power systems.

• 18µA sleep mode quiescent current, fixed output
• Internal 48mohm high-side MOSFET (HSFET) and 20mohm low-side MOSFET (LSFET)
• 350KHz to 1000KHz configurable switching frequency (fSW) for car battery applications
• Can be synchronized to an external clock, out-of-phase synchronized clock output
• Frequency spread spectrum (FSS) for low EMI, 1.7µA low shutdown supply current
• Symmetric VIN for low EMI, power good (PG) output, external soft start (SS)
• 100ns minimum on time
• Selectable advanced asynchronous modulation (AAM) mode or forced continuous conduction mode (FCCM)
• Low dropout mode, overcurrent protection (OCP) with hicc-up mode
• AEC-Q100 Grade 1 qualified