MPQ4481GU-AEC1-Z Monolithic Power Systems

MPQ4481 36V, 3A, Step-Down Converter with Programmable Frequency and Spread Spectrum Option Single USB Charging Port Supporting EN USB, Fault Indication for Automotive, AEC-Q100 Qualified The Future of Analog IC Technology DESCRIPTION FEATURES Supports DCP Schemes for BC1.2, Divider The MPQ4481 integrates a monolithic, step- Mode, and 1.2V/1.2V Mode down, switch-mode converter with a single USB Supports USB Type-C 5V 3A DFP Mode current-limit switch and Type-C 5V 3A mode Wide 6V to 36V Operating Input Range configuration channel for the USB port. The MPQ4481 achieves 3A of output current with Selectable V : 5.1V, 5.17V, and 5.3V OUT excellent load and line regulation over a wide Programmable Line Drop Compensation input supply range. Accurate USB Output Current Limit Low Dropout Mode The output of the USB switch is current-limited. 25m/20m Low RDS(ON) Internal Buck The USB port supports DCP schemes for Power MOSFETs battery charging specification (BC1.2), divider 15m Low R Internal USB Power DS(ON) mode, 1.2V/1.2V mode, and USB Type-C 5V MOSFETs 3A DFP mode without the need for outside user Up to 2.2MHz Operation Frequency interaction. Frequency Spread Spectrum for Full protection features include hiccup current MPQ4481GU-FD-AEC1 limiting, output over-voltage protection (OVP), Forced Continuous Conduction Mode (CCM) and thermal shutdown. Operation The MPQ4481 requires a minimal number of Load Shedding versus Temperature readily available, standard, external EN Control for USB components and is available in a QFN-26 Fault Indication for USB (5mmx5mm) package. 8kV HBM ESD Rating for USB, DP, DM Available in a QFN-26 (5mmx5mm) Package Available in AEC-Q100 Grade 1 APPLICATIONS USB-Dedicated Charging Ports (DCP) USB Type-C Charging Port All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. MPQ4481 Rev. 1.1 www.MonolithicPower.com 1 11/6/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. MPQ4481 STEP-DOWN CONVERTER WITH SINGLE usb charging PORT, AEC-Q100 TYPICAL APPLICATION Efficiency vs. C4 220nF Load Current 100 L1 Vout=5.17V 2.2H + C2 95 C2A C1 C1A + 100F 10F 47F 20F MPQ4481 90 85 C5 2.2F 80 DM R9 150 75 DP CC2 R1 CC1 9.53k 70 0123 C6 C3 1nF LOAD CURRENT (A) 1F MPQ4481 Rev. 1.1 www.MonolithicPower.com 2 11/6/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved.