36V, 6A, Step-Down Converter with Programmable Frequency and Spread Spectrum Option, Dual USB Charging Ports Supporting EN, Fault Indication, and Type-C 5V@ 3A DFP Mode for Automotive, AEC-Q100 Qualified



The MPQ4487 integrates a monolithic, step-down, switch-mode converter with two USB current-limit switches and Type-C 5V @ 3A mode configuration channels for each port. The MPQ4487 achieves 6A of output current with excellent load and line regulation over a wide input supply range.
The output of each USB switch is current-limited. Both USB ports support 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 MPQ4487 requires a minimal number of readily available, standard, external components and is available in a QFN-26 (5mmx5mm) package.


  • Wide 6V to 36V Operating Input Voltage Range
  • Selectable Output Voltage
  • Line Drop Compensation 
  • Accurate USB1/USB2 Output Current Limit 
  • 18mΩ/15mΩ Low RDS(ON) Internal Buck Power MOSFETs 
  • 18mΩ/18mΩ Low RDS(ON) Internal USB1/USB2 Power MOSFETs
  • Frequency Adjustable (250kHz to 2.2MHz)
  • Frequency Spread Spectrum for MPQ4487GU-FD-AEC1
  • Forced Continuous Conduction Mode (CCM) Operation 
  • Load Shedding Versus Temperature 
  • Hiccup Current Limit for both Buck and USB
  • EN Control for USB1 and USB2
  • Fault Indication for USB1 and USB2
  • Supports USB Type-C 5V @ 3A Mode
  • ±8kV HBM ESD Rating for USB1 and USB2 
  • Available in a QFN-26 (5mmx5mm) Package
  • Available in AEC-Q100 Grade 1


  • fsw (max) (kHz)2200
  • 最小输入电压6
  • Vin (max) (V)36
  • Iout (max) (A)6
  • Isw Limit (typ) (A)12
  • Max Duty Cycle (%)0.95
  • Iq (typ) (mA)1
  • 额定输出3
  • Vout (max) (V)5.3
  • Vout (min) (V)5.1
  • PGNo
  • SS内部
  • Step-Down DC/DC Controller0
  • Step-Down DC/DC Converter1
  • Step-Up DC/DC Controller0
  • Step-Up DC/DC Converter0
  • Step-Down Converter Current (A)6.0
  • Internal LDO0
  • GradeAutomotive
  • PackageQFN-26 (5x5)
  • Control ModeCurrent Mode
  • Common FeaturesForced CCM, Synchronous Rectification
  • Special FeaturesEN Control for USB, Fault Indication for USB, Forced CCM, Frequency Spread Spectrum, Load Shedding, Output Line Drop Compensation, Programmable Frequency, Supports USB Type-C 5V @ 3A DFP Mode, USB Output Discharge