MPQ4228-AEC1

36V, 3A, Step-Down Converter with USB Charging Port Supporting DCP and Type-C 5V @ 3A DFP Mode, AEC-Q100 Qualified

Description

The MPQ4228 integrates a monolithic, step-down switch-mode converter with a single USB current-limit switch, as well as a Type-C 5V @ 3A mode configuration channel for USB ports. It achieves up to 3A of output current (I_OUT) across a wide 4.2V to 36V input voltage (V_IN) range, with excellent load and line regulation.

The USB switch’s output is current-limited. The USB port supports Apple 3A divider mode, BC1.2 DCP schemes, 1.2V/1.2V mode, USB Type-C 5V @ 3A DFP mode, and Type-A mode (CC1 = 97.6kΩ).

Full protection features include current limiting with hiccup mode, output over-voltage protection (OVP), DP/DM/CC1/CC2 short-to-battery protection, and thermal shutdown. The NTC input monitors the temperature of the external PCB and other components.

The MPQ4228 requires a minimal number of readily available, standard external components, and is available in a QFN-22 (4mmx4mm) package.

Features & Benefits

Supports Charging Only for Type-C and Type-A Ports
NTC Over-Temperature Detection
Passes Apple MFI R33 Certification Test
USB-IF Type-C Certificated
145°C Internal Load Shedding Entry Temperature
Independent USB On/Off Control Pin (EN1)
Supports BC1.2 DCP Mode, Apple 3A Divider Mode, and 1.2V/1.2V Mode
USB_OUT, DP/DM, and CC1/CC2 Pins Short-to-Battery Protection
Wide 4.2V to 36V Continuous Operating Input Voltage (V_IN) Range
420kHz Selectable Switching Frequency (f_SW) (2.2MHz with Spread Spectrum)
Up to 3A Output Current (I_OUT)
Integrated 20mΩ Low R_DS(ON) USB MOSFET
Line Drop Compensation
Selectable Forced Continuous Conduction Mode (FCCM) or Automatic Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode
Enable (EN) Shutdown Discharge Function
Over-Current Protection (OCP)
Over-Voltage Protection (OVP)
Over-Temperature Detection (OTP)
Fault Indication for OCP, OVP, and OTP
200kHz to 2.2MHz Frequency Synchronization
Current Limiting with Hiccup Mode for the Buck and USB
±8kV IEC 61000-4-2 Contact Discharge ESD Rating for the CC1 and CC2 Pins
±8kV IEC 61000-4-2 Contact Discharge ESD Rating with Small Resistor and Capacitor on the DP and DM Pins
±15kV IEC 61000-4-2 Air Discharge ESD Rating for the DP, DM, CC1, and CC2 Pins
Available in a QFN-22 (4mmx4mm) Package
Available in a Wettable Flank Package
Available in AEC-Q100 Grade 1