MPQ4320 - MPS

MPQ4320 Step-Down Converter

The MPQ4320 is a configurable-frequency (350kHz to 1.8MHz), synchronous, step-down switching converter with integrated internal highside and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides up to 0.5A of highly efficient output current (IOUT) with peak current mode control. The wide 3.3V to 36V input voltage (VIN) range and 42V l.

Features

• Designed for Automotive Applications: o Survives 42V Load Dump o Supports 3.1V Cold Crank o Up to 0.5A of Continuous Output Current (IOUT) o Continuous Operation Up to 36V o -40°C to +150°C Junction Temperature (TJ) Range FEATURES (continued)
• Increases Battery Life: o 1μA Shutdown Supply Current (ISD) o 20μA Sleep Mode Quiescent Current (IQ) o Advanced Asynchronous Modulation (AAM) Mode Increases Efficiency under Light Loads
• High Performance for Improved Thermals: o Integrated 70mΩ HS-FET and 50mΩ LS-FET o 65ns Minimum On Time (tON_MIN) o 50ns Minimum Off Time (tOFF_MIN)
• Optimized for.