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USB Charging Port
MPQ4481-AEC1

MPQ4481-AEC1

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

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Description

The MPQ4481 integrates a monolithic, step-down, switch-mode converter with a single USB current-limit switch and Type-C 5V @ 3A mode configuration channel for the USB port. The MPQ4481 achieves 3A of output current with excellent load and line regulation over a wide input supply range.

The output of the USB switch is current-limited. The USB port supports DCP schemes for battery charging specification (BC1.2), divider mode, 1.2V/1.2V mode, and USB Type-C 5V @ 3A DFP mode without the need for outside user interaction.

Full protection features include hiccup current limiting, output over-voltage protection (OVP), and thermal shutdown.

The MPQ4481 requires a minimal number of readily available, standard, external components and is available in a QFN-26 (5mmx5mm) package.

Features & Benefits

Supports DCP Schemes for BC1.2, Divider Mode, and 1.2V/1.2V Mode
Supports USB Type-C 5V @ 3A DFP Mode
Wide 6V to 36V Operating Input Range
Selectable V_OUT: 5.1V, 5.17V, and 5.3V
Programmable Line Drop Compensation
Accurate USB Output Current Limit
Low Dropout Mode
25mΩ/20mΩ Low R_DS(ON) Internal Buck Power MOSFETs
15mΩ Low R_D_S(ON) Internal USB Power MOSFETs
Up to 2.2MHz Operation Frequency
Frequency Spread Spectrum for MPQ4481GU-FD-AEC1
Forced Continuous Conduction Mode (CCM) Operation
Load Shedding versus Temperature
EN Control for USB
Fault Indication for USB
±8kV HBM ESD Rating for USB, DP, DM
Available in a QFN-26 (5mmx5mm) Package
Available in AEC-Q100 Grade 1

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