MPQ4430 36V, 3.5A, Low Quiescent Current, Synchronous, Step-Down Converter AEC-Q100 Qualified The Future of Analog IC Technology DESCRIPTION FEATURES The MPQ4430 is a frequency-programmable Wide 3.3V to 36V Operating Input Range (350kHz to 2.5MHz), synchronous, step-down, 3.5A Continuous Output Current switching regulator with integrated internal high- 1 A Low Shutdown Mode Current side and low-side power MOSFETs. It provides 10 A Sleep Mode Quiescent Current up to 3.5A of highly efficient output current with Internal 90m High-Side and 40m Low- current mode control for fast loop response. Side MOSFETs 350kHz to 2.5MHz Programmable The wide 3.3V to 36V input range accommodates Switching Frequency a variety of step-down applications in automotive Fixed Output Options: 3.3V, 3.8V, 5V input environments and is ideal for battery- Synchronize to External Clock powered applications due to its extremely low quiescent current. Selectable In-Phase or 180 Out-of-Phase Power Good (PG) Indicator The MPQ4430 employs advanced Programmable Soft-Start (SS) Time asynchronous mode (AAM), which helps 80ns Minimum On Time achieve high efficiency in light-load condition by Selectable Forced CCM or AAM scaling down the switching frequency to reduce Low Dropout Mode switching and gate driving losses. Over-Current Protection (OCP) with Valley- Standard features include soft start (SS), Current Detection and Hiccup external clock synchronization, enable (EN) Available in a QFN-16 (3mmx4mm) control, and a power good (PG) indicator. High- Package duty cycle and low dropout mode are provided Available with Wettable Flank for automotive cold-crank condition. AEC-Q100 Grade 1 Over-current protection (OCP) with valley- APPLICATIONS current detection is employed to prevent the inductor current from running away. Hiccup Automotive Systems mode reduces the average current in short- Industrial Power Systems circuit condition greatly. Thermal shutdown All MPS parts are lead-free, halogen-free, and adhere to the RoHS provides reliable and fault-tolerant operation. directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are The MPQ4430 is available in a QFN-16 registered trademarks of Monolithic Power Systems, Inc. (3mmx4mm) package. TYPICAL APPLICATION 100 95 90 85 80 75 70 65 60 0.01 0.1 1 10 Output Adjustable Version Output Fixed Version MPQ4430 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. MPQ4430 36V, 3.5A, LOW IQ, SYNCHRONOUS, STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MSL Rating** MPQ4430GL See Below MPQ4430GL-AEC1 MPQ4430GLE-AEC1*** QFN-16 (3mmx4mm) See Below 1 MPQ4430GLE-38-AEC1*** See Below MPQ4430GLE-5-AEC1*** See Below * For Tape & Reel, add suffix Z (e.g. MPQ4430GLZ) ** Moisture Sensitivity Level Rating *** Wettable Flank TOP MARKING (MPQ4430GL & MPQ4430GL-AEC1) MP: MPS prefix Y: Year code W: Week code 4430: First four digits of the part number LLL: Lot number TOP MARKING (MPQ4430GLE-AEC1) MP: MPS prefix Y: Year code W: Week code 4430: First four digits of the part number LLL: Lot number E: Wettable lead flank MPQ4430 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.