MPQ4314GRE-AEC1-Z

MPQ4314 is a configurable-frequency, synchronous, step-down switching regulator with integrated internal high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). It provides up to 4A 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 environments. High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce the switching and gate driver losses. An open-drain power good (PG) signal indicates whether the output is within 95% to 105% of its nominal voltage. High-duty cycle and low-dropout mode are provided for automotive cold crank conditions. The MPQ4314 is available in a QFN-20 (4mmx4mm) package. Applications include automotive infotainment/clusters, advanced driver assistance systems (ADAS) and industrial power systems.

• 18µA sleep mode quiescent current (IQ), 1.7µA shutdown mode quiescent current
• Internal 48mohm high-side MOSFET (HSFET) and 20mohm low-side MOSFET (LSFET)
• 350KHz to 1000kHz programmable switching frequency (fSW) for car battery applications
• Synchronize to external clock
• Out-of-phase synchronized clock output
• Frequency spread spectrum for low EMI, thermal shutdown provides reliable, fault-tolerant operation
• 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, hiccup overcurrent protection (OCP),AEC-Q100 grade 1 qualified
• Frequency foldback helps prevent inductor current runaway during start-up