The MP5408 integrates a monolithic, step-down, switch-mode converter with two USB current-limit switches and charging port identification circuitry for each port. The MP5408 achieves 6A of output current with excellent load and line regulation over 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 mode, and USB Type-C 5V@3A DFP mode, eliminating the need for outside user interaction.Full protection features include hiccup current limiting, output over-voltage protection (OVP), and thermal shutdown. The MP5408 requires a minimal number of readily available, standard, external components and is available in a QFN-26 (5mmx5mm) package.
Feature
- Wide 6V to 36V Operating Input Voltage Range
- Selectable Output Voltage: 5.1V, 5.17V, and 5.3V
- 90mV Line Drop Compensation
- Accurate USB1/USB2 Output Current Limit
- 18mΩ/15mΩ Low RDS(ON) Internal Buck Power MOSFETs
- 13mΩ/13mΩ Low RDS(ON) Internal USB1/USB2 Power MOSFETs
- Frequency Adjustable (235kHz 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
