MONOLITHIC POWER SYSTEMS (MPS) MPQ4348GLE-33-AEC1-P DC-DC Switching Synchronous Buck Regulator, Fixed, 3.3 to 36V in, 2.2MHz, 3.3V/5A Out, QFN-17, 150°C

MPQ4348GLE-33-AEC1-P is a 36V, 2A, ultra-low quiescent current, synchronous step-down converter. It is a configurable frequency (350KHz to 2.5MHz), synchronous step-down switching converter with integrated internal high-side and low side power MOSFETs. The device provides up to 2A of highly efficient output current (IOUT) with fixed-frequency, zero-delay pulse-width modulation (PWM) control to optimize transient response. The wide 3.3V to 36V input voltage (VIN) range and 42V load dump tolerance accommodate 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 switching and gate driving losses. Typical applications are automotive clusters, automotive infotainment, advanced driver assistance systems (ADAS), industrial power systems.

• AEC-Q100 grade 1 qualified
• Designed for automotive applications, zero-delay pulse-width modulation (PWM) control
• 20ns minimum on time (tON-MIN), supports 3.1V cold crank
• Operating junction temperature (TJ) range from -40°C to +150°C
• Increases battery life, 3μA sleep mode quiescent current (IQ)
• Advanced asynchronous modulation (AAM) mode for light-load efficiency
• Optimized for EMC and EMI, symmetric VIN pinout, frequency spread spectrum (FSS) modulation
• MeshConnectâ�¢ flip-chip package, external soft start (SS)
• Power good (PG) output, synchronizable to external clock, synchronized clock output
• Fixed 3.3V output voltage, QFN-17 package

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