MPQ4481 36V, 3A, Step-Down Converter with Programmable Frequency and Single USB Charging Port Supporting EN USB, Fault Indication for Automotive, AEC-Q100 Qualified 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 R Internal Buck DS(ON) 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. Forced Continuous Conduction Mode Full protection features include hiccup current (CCM) Operation limiting, output over-voltage protection (OVP), Load Shedding versus Temperature and thermal shutdown. EN Control for USB The MPQ4481 requires a minimal number of Fault Indication for USB readily available, standard, external 8kV HBM ESD Rating for USB, DP, DM components and is available in a QFN-26 Available in a QFN-26 (5mmx5mm) (5mmx5mm) package. 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. TYPICAL APPLICATION C4 220nF L1 Vout=5.17V VIN BST SW 12V 2.2H + C2 IN C2A C1 C1A + 100F OUT 10F 47F 20F MPQ4481 OUT SEL EN USB EN USB C5 2.2F DM VDROP DM R9 Type-C FLT USB, 3A 150 DP DP FREQ CC2 R1 CC2 CC1 9.53k CC1 C6 VCC C3 1nF NC AGND PGND 1F MPQ4481 Rev. 1.0 www.MonolithicPower.com 1 10/25/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. MPQ4481 STEP-DOWN CONVERTER WITH SINGLE USB CHARGING PORT, AEC-Q100 ORDERING INFORMATION Part Number* Package Top Marking See Below MPQ4481GU-AEC1 QFN-26 (5mmx5mm) * For Tape & Reel, add suffix Z (e.g. MPQ4481GU-AEC1Z) TOP MARKING MPS: MPS prefix YY: Year code WW: Week code MP4481: Part number LLLLLLL: Lot number PACKAGE REFERENCE TOP VIEW CC2 FLT EN USB EN DP DM VDROP 24 23 22 21 20 19 18 CC1 17 NC 1 NC USB 2 16 15 OUT 3 25 OUT OUT IN 4 14 IN 26 SW PGND 5 13 PGND 6 7 8 9 10 11 12 OUT SEL FREQ AGND VCC SW SW BST QFN-26 (5mmx5mm) MPQ4481 Rev. 1.0 www.MonolithicPower.com 2 10/25/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.