Model No: MPQ4488BGU-AEC1-Z

Monolithic Power Systems Inc. MPQ4488BGU-AEC1-Z

Manufacturer: Monolithic Power Systems Inc.
SEMICON NO.: MPQ4488BGU-AEC1-Z
Package: 26-QFN
Stock: In stock
Description: IC Buck Converter MPQ4488 36V 3 Outputs
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 Mfr  Monolithic Power Systems Inc. 
 Product Series MPQ4488
 Device Type Switching Voltage Regulator / Step-Down (Buck) Converter
 Topology  Buck (Step-Down) 
 Number of Outputs 3 Outputs 
 Input Voltage (VIN) Range 6 V to 36 V 
 Output Voltage (VOUT) 5.1 V, 5.17 V, 5.3 V (Fixed) 
 Output Current (Max)  6 A 
 Switching Frequency  250 kHz to 2.2 MHz 
 Quiescent Current (Iq)   1 mA (Typical) 
 Efficiency  Up to 95% 
 Operating Temperature -40°C to +125°C 
 Package 26-QFN
 Mounting Type Surface Mount
 Compliance    
 RoHS Compliant
MPQ4488BGU-AEC1-Z 36V 6A Automotive Buck Converter with Dual USB Charging Ports
The MPQ4488BGU-AEC1-Z is a high-performance, automotive-qualified synchronous buck converter manufactured by Monolithic Power Systems (MPS), integrating dual USB charging ports and a wide-input voltage step-down regulator into a compact 5mm×5mm QFN-26 package. Designed for 12V/24V automotive systems and industrial applications, it delivers up to 6A continuous output current while supporting USB Type‑C 5V@3A DFP, BC1.2 DCP, and Apple charging protocols, with AEC‑Q100 Grade 1 qualification for harsh operating environments.
It operates over an ultra‑wide 6V to 36V input voltage range, accommodating automotive battery and industrial power rails, and integrates low RDS(ON) 18mΩ/15mΩ power MOSFETs for high efficiency up to 94% at 12V input and 5V output. The device offers selectable 5.1V, 5.17V, or 5.3V output voltage, programmable switching frequency from 200kHz to 2.2MHz, and configurable spread‑spectrum clocking for EMI reduction. It passes Apple MFI R33 and USB‑IF Type‑C certifications, features accurate dual 3A USB current limits, 100mV line drop compensation, and a +135°C load‑shedding threshold for robust thermal management.
MPQ4488BGU-AEC1-Zstep-down converterApplications
Primarily targeted for automotive infotainment, center console, and rear‑seat USB charging systems, it also serves industrial 24V power supplies, battery‑powered equipment, and embedded systems requiring high‑efficiency step‑down conversion with dual USB charging capability. Its wide input range, EMI optimization, and robust protection make it ideal for harsh automotive and industrial environments where reliability and compliance with USB charging standards are critical.
Alternative buck converters
● MPQ4488BGU‑FD‑AEC1‑Z (MPS): Pin‑compatible variant with additional fault diagnostics, same 36V/6A rating and QFN‑26 package for automotive USB charging designs.
● TI PMP4488: 7V–40V input, 5V/3A dual USB buck converter, optimized for automotive EMI performance and low external component count.
● ON Semiconductor NCV8902: 40V/5A synchronous buck regulator with dual USB ports, AEC‑Q100 qualified, and integrated protection for 12V automotive systems.