36V, 5A, Frequency-Selectable Step-Down Converter with Smart, Dual USB Charging Ports

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Product Description

The MP5402 integrates a monolithic, step-down, switch-mode converter with two USB current-limit switches and a charging port identification circuit. The MP5402 achieves 5A of continuous output current with excellent load and line regulation over a wide input supply range.

The output of the USB switch is current-limited. Both USB ports support DCP schemes for the battery charging specification (BC1.2), divider mode, and 1.2V/1.2V mode, eliminating the need for outside user interaction.

The output voltage has programmable line drop compensation.

Full protection features include hiccup current limiting, output over-voltage protection (OVP), and thermal shutdown.

The MP5402 requires a minimal number of readily available, standard, external components and is available in a QFN-26 (4mmx4mm) package.

Product Features

  • Wide 7V to 36V Operating InputVoltage Range
  • Fixed 5V Output Voltage with Line Drop Compensation
  • Accurate USB1/USB2 Output Current Limit
  • 40mΩ/32mΩ Low-RDS(ON) Internal Buck Power MOSFETs
  • 24mΩ/24mΩ Low-RDS(ON) Internal USB1/USB2 Power MOSFETs
  • 350kHz / 250kHz / 150kHz Frequency Selectable
  • Programmable Line Drop Compensation
  • Output Over-Voltage Protection (OVP)
  • Hiccup Current Limit
  • Supports DCP Schemes for BC1.2, Divider Mode, and 1.2V/1.2V Mode
  • ±8kV HBM ESD Rating for USB, DP, and DM
  • Available in a QFN-26 (4mmx4mm) Package


  • Vin (min) (V)7
  • Vin (max) (V)36
  • Iout (max) (A)5
  • Iq (typ) (mA)1.6
  • Regulated Outputs3
  • fsw (max) (kHz)350
  • Step-Down DC/DC Controller0
  • Step-Down DC/DC Converter1
  • Step-Up DC/DC Controller0
  • Step-Up DC/DC Converter0
  • Internal LDO0
  • GradeCatalog
  • 封装QFN-26 (4x4)
  • Internal LDO
  • Step-Down Converter Current (A)5.0
  • 特性Buck Output Discharge, Fixed Output Voltage Options, Forced CCM, Output Line Drop Compensation, Programmable Frequency, Supports DCP Scheme, USB Output Discharge
  • SS内部
  • PGNo