MPQ4432 36V, 2.2A, Low Quiescent Current, Synchronous, Step-Down Converter AEC-Q100 Qualified DESCRIPTION FEATURES The MPQ4432 is a synchronous, step-down, Wide 3.3V to 36V Operating Input Range switching regulator with programmable 2.2A Continuous Output Current frequency (350kHz to 2.5MHz) and integrated, 1A Low Shutdown Mode Current internal, high-side and low-side power 10A Sleep Mode Quiescent Current MOSFETs. The MPQ4432 provides up to 2.2A Internal 90m High-Side and 40m Low- of highly efficient output current with current Side MOSFETs mode control for fast loop response. 350kHz to 2.5MHz Programmable Switching Frequency The wide 3.3V to 36V input range Fixed Output Options: 3.3V, 3.8V, 5V accommodates a variety of step-down applications in automotive input environments. Synchronize to External Clock, Selectable In-Phase or 180 Out-of-Phase The MPQ4432 is ideal for battery-powered applications due to its extremely low quiescent Power Good Indicator current. Programmable Soft-Start Time 80ns Minimum On Time The MPQ4432 employs advanced Selectable Forced CCM or AAM asynchronous mode (AAM) to achieve high Low Dropout Mode efficiency in light-load condition by scaling down Over-Current Protection (OCP) with Valley- the switching frequency to reduce switching and Current Detection and Hiccup gate driving losses. Available in a QFN-16 (3mmx4mm) Standard features include soft start, external Package clock synchronization, enable control, and power Available in Wettable Flank good indication. High-duty cycle and low dropout Available in AEC-Q100 Grade 1 mode are provided for automotive cold-crank. APPLICATIONS Over-current protection (OCP) with valley- current detection is employed to prevent the Automotive Systems inductor current from running away. Hiccup Industrial Power Systems mode reduces the average current greatly in All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. short-circuit condition. Thermal shutdown For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered provides reliable and fault-tolerant operation. trademarks of Monolithic Power Systems, Inc. The MPQ4432 is available in a QFN-16 (3mmx4mm) package. TYPICAL APPLICATION VIN VIN VIN VIN BST EN BST EN SYNC SYNC VOUT SW VOUT SW MPQ4432 MPQ4432 PHASE PHASE GND GND FREQ FREQ FB FB PG PG VCC VCC SS BIAS SS BIAS Output Adjustable Version Output Fixed Version MPQ4432 Rev. 1.1 www.MonolithicPower.com 1 5/28/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. MPQ4432 - 36V, 2.2A, LOW IQ, SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MSL Rating** MPQ4432GL See Below MPQ4432GL-AEC1 MPQ4432GLE-AEC1*** QFN-16 (3mmx4mm) See Below 1 MPQ4432GLE-38-AEC1*** See Below MPQ4432GLE-5-AEC1*** See Below * For Tape & Reel, add suffix Z (e.g. MPQ4430GLZ) ** Moisture Sensitivity Level Rating *** Wettable Flank TOP MARKING (MPQ4432GL & MPQ4432GL-AEC1) MP: MPS prefix Y: Year code W: Week code 4432: First four digits of the part number LLL: Lot number TOP MARKING (MPQ4432GLE-AEC1) MP: MPS prefix Y: Year code W: Week code 4432: First four digits of the part number LLL: Lot number E: Wettable lead flank MPQ4432 Rev. 1.1 www.MonolithicPower.com 2 5/28/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.