MPQ4469 36V, 5A, Low Quiescent Current, Asynchronous, Step-Down Converter, AEC-Q100 Qualified DESCRIPTION FEATURES The MPQ4469 is a step-down switching Wide 3.3V to 36V Operating Input Range regulator with an integrated internal high-side 5A Continuous Output Current power MOSFET and a configurable frequency 1A Low Shutdown Mode Current from 350kHz to 2.5MHz. It provides up to 5A of 10A Sleep Mode Quiescent Current highly efficient output current with current mode Internal 110m High-Side MOSFET control for fast loop response. 350kHz to 2.5MHz Configurable Switching Frequency The wide 3.3V to 36V input range accommodates Synchronize to External Clock a variety of step-down applications in automotive input environments. The device is ideal for Selectable In-Phase or 180 Out-of-Phase battery-powered applications due to its Power Good Indicator extremely low quiescent current. Configurable Soft-Start Time 100ns Minimum On Time The MPQ4469 employs AAM (advanced Low Dropout Mode asynchronous modulation) mode, which Over-Current Protection and Hiccup Mode achieves high efficiency in light-load conditions AAM at Light Load by scaling down the switching frequency to Available in a QFN-20 (4mmx5mm) reduce switching and gate-driving losses. Package Standard features include soft start (SS), AEC-Q100 Grade-1 external clock sync, enable (EN) control, and a power good (PG) indicator. High duty cycle and APPLICATIONS low-dropout mode are provided for automotive Automotive Systems cold crank conditions. Industrial Power Systems Over-current protection (OCP) is employed to All MPS parts are lead-free, halogen-free, and adhere to the RoHS prevent the inductor current from running away. directive. For MPS green status, please visit the MPS website under Hiccup mode greatly reduces the average Quality Assurance. MPS, the MPS logo, and Simple, Easy Solutions are trademarks of Monolithic Power Systems, Inc. or its current in short circuit conditions. Thermal subsidiaries. shutdown provides reliable, fault-tolerant operation. The MPQ4469 is available in a QFN-20 (4mmx5mm) package. TYPICAL APPLICATION VIN 3.3V to 36V Efficiency vs. Load Current VOUT = 5V, fSW = 500kHz, L = 10H 95 VIN EN BST SYNC 85 SW VOUT MPQ4469 PHASE GND 75 FREQ FB VIN=12V VIN=24V PG VCC VIN=36V 65 SS BIAS 10 100 1000 5000 LOAD CURRENT (mA) MPQ4469 Rev. 1.0 www.MonolithicPower.com 1 11/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. EFFICIENCY (%) MPQ4469 36V, 5A, LOW I , ASYNCHRONOUS STEP-DOWN CONVERTER Q ORDERING INFORMATION Part Number* Package Top Marking MSL Rating** See Below MPQ4469GV-AEC1 QFN-20 (4mmx5mm) 2 * For Tape & Reel, add suffix Z (e.g. MPQ4469GVAEC1Z). ** Moisture Sensitivity Level Rating TOP MARKING MPS: MPS prefix Y: Year code WW: Week code MP4469: Part number LLLLLL: Lot number PACKAGE REFERENCE TOP VIEW 1 2 15 3 4 5 9 8 EXPOSED PAD ON BACKSIDE QFN-20 (4mmx5mm) MPQ4469 Rev. 1.0 www.MonolithicPower.com 2 11/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.