DESCRIPTION

The MP5408Mintegrates a monolithic, step-down, switch-mode converter withtwo USB current-limit switches and charging port identification circuitry for each port. The MP5408Machieves 6A of output current with excellent load and line regulationover a wide input-supply range.

The output of the USB switch is current-limited. Both USB ports support DCP schemes for battery charging specification (BC1.2), divider mode, 1.2V/1.2V modeand USB Type-C 5V@3A DFPmode,eliminating the need for outside user interaction.

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

The MP5408M requires a minimal number of readily available, standard, external componentsand is available in a QFN-26 (5mmx5mm) package.

FEATURES

EMI Reduction Technique

Wide 6V to 36V Operating InputVoltage Range

Selectable Output Voltage: 5.1V, 5.17V, and 5.3V

90mV Line Drop Compensation

Accurate USB1/USB2 OutputCurrent Limit

18mΩ/15mΩ Low RDS(ON) Internal Buck Power MOSFETs

13mΩ/13mΩ Low RDS(ON) Internal USB1/USB2 Power MOSFETs

Frequency Adjustable (200kHz to 2.2MHz)

Forced Continuous Conduction Mode (CCM) Operation

Hiccup Current Limit for both Buck and USB

Supports DCP Schemes for BC1.2, Divider Mode, and 1.2V/1.2V Mode

Supports USB Type-C 5V@3A DFP Mode

±8kV HBM ESD Rating for USB, DP, and DM pins

Available in a QFN-26 (5mmx5mm) Package

APPLICATIONS

USB Dedicated Charging Ports (DCP)

USB Type-C 5V@3A DFP

Automotive Cigarette Lighter Adapters

Power Supply for Linear Chargers

TYPICAL APPLICATION