Monolithic Power Systems (MPS) MPQ4228-C Step-Down Converter with Charging Port

Monolithic Power Systems (MPS) MPQ4228-C Step-Down Converter with Charging Port integrates a single USB current-limit switch and a Type-C™ 5V at 3A mode configuration channel for USB ports. The device provides 3A output current across a wide input supply range, achieving excellent load/line regulation. The output on the switch is current-limited.

The USB port on the MPS MPQ4228-C supports charging downstream port (CDP) schemes. The USB port also faciliatates USB Type-C 5V at 3A DFP mode. Fault condition protections include hiccup current limiting, output over-voltage protection (OVP), DP/DM/CC1/CC2 short-to-battery protection, and thermal shutdown (TSD).

The MPQ4228-C is housed in a QFN-22 (4mm x 4mm) package and requires few readily available, standard external components.

Features

  • Supports BC1.2 CDP mode
  • Supports USB Type-C 5V at 3A DFP mode
  • USB_OUT, DP/DM, CC1/CC2 Pins short-to-battery protection
  • Wide 4.2V to 36V continuous operating input range
  • Passes Apple MFI R33 certification test
  • Passes USB-IF Type-C certification test
  • Selectable switching frequency (420kHz and 2.2MHz with spread spectrum)
  • Integrated high bandwidth USB2.0 data switch with OVP
  • Adjustable line drop compensation
  • Accurate 3.55A and 2.85A USB current limit
  • Integrated 20mΩ low RDS(ON) USB switch
  • +145°C internal load-shedding entry temperature
  • EN Shutdown discharge function
  • Fault indication for OCP, OVP, and OTP
  • Frequency synchronization from 200kHz to 2.2MHz
  • Hiccup current limit for both buck and USB
  • OVP for USB switch
  • ±8kV IEC 61000-4-2 Contact discharge ESD rating for CC1 and CC2 pins
  • ±8kV IEC 61000-4-2 Contact discharge ESD rating with external small ESD diodes on DP and DM pins
  • ±15kV IEC 61000-4-2 Air discharge ESD rating for DP, DM, CC1, and CC2 pins
  • Available in a QFN-22 (4mm x 4mm) package with wettable flanks
  • AEC-Q100 Grade 1 available

Applications

  • USB Charging Downstream Ports (CDP)
  • USB Type-C DFP ports
  • USB Hubs

Videos

Typical Application

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ4228-C Step-Down Converter with Charging Port

Performance Graph - Monolithic Power Systems (MPS) MPQ4228-C Step-Down Converter with Charging Port

Monolithic Power Systems (MPS) MPQ4228-C Step-Down Converter with Charging Port