MPQ4228GRE-AEC1-Z

MPQ4228 integrates a monolithic, stepdown switch-mode converter with a single USB current-limit switch, as well as a Type-C 5V at 3A mode configuration channel for USB ports. It achieves 3A of output current across a wide input supply range, with excellent load and line regulation. The USB switch’s output is current-limited. The USB port supports Apple 3A divider mode, DCP schemes for BC1.2, and 1.2V/1.2V mode. The USB port also supports USB Type-C 5V @ 3A DFP mode and Type-A mode (CC1 = 97.6Kohm). Fault condition protections include hiccup current limiting, output overvoltage protection (OVP), DP/DM/CC1/CC2 short to battery protection, and thermal shutdown (TSD). The NTC input monitors the temperature of the external PCB, as well as other components. The MPQ4228 requires a minimal number of readily available, standard external components. The MPQ4228 is available in a QFN-22 package. Applications include USB dedicated charging ports (DCP), USB Type-C DFP port.

• Supports charging only Type-C or Type-A port
• NTC overtemperature detection, passes Apple MFI R33 certification test
• USB-IF Type-C certificated, 145°C internal load shedding entry temperature
• Supports BC1.2 DCP mode, Apple 3A divider mode and 1.2V/1.2V mode
• USB-OUT, DP/DM, CC1/CC2 pins short to battery protection
• Wide 4.2V to 36V continuous operating input voltage range
• Selectable switching frequency (420KHz and 2.2MHz with spread spectrum)
• 3A output current, integrated 20mohm low RDS(ON) USB switch, line drop compensation
• Available in AEC-Q100 Grade 1, hiccup current limit for both buck and USB
• EN shutdown discharge function, fault indication for OCP/OVP/OTP, frequency sync from 200KHz-2.2MHz