Nano Pulse Control™ 4.5 V to 36 V Input, 5 A Integrated MOSFET Single Synchronous Buck DC/DC Converter

Nano Pulse Control™ 4.5 V to 36 V Input, 5 A Integrated MOSFET Single Synchronous Buck DC/DC Converter



The BD9F500QUZ from ROHM Semiconductor is a DC to DC Converter with Input Voltage 4.5 to 36 V, Output Voltage 1 0.6 to 14 V, Output Current 1 0 to 5000 mA, Storage Temperature -55 to 150 °C. Tags: Surface Mount, Buck/Step down. More details for BD9F500QUZ can be seen below.

ROHM Semiconductor BD9F500QUZ Nano Pulse Control™ Synchronous Buck DC-DC Converter features built-in low on-resistance power MOSFETs. The BD9F500QUZ DC-DC Converter offers a current of up to 5A and a fast transient response due to the Constant On-Time control system. Additionally, the Light Load Mode control improves efficiency in light-load conditions.

The ROHM BD9F500QUZ Synchronous Buck DC-DC Converter is ideal for reducing the standby power consumption of equipment. The system can control sequence via the Power Good function. The BD9F500QUZ achieves high power density and provides a small footprint on the PCB, all in a small package.


  • Single synchronous buck DC-DC converter
  • Constant on-time control
  • Light load mode control
  • Adjustable soft start
  • Power good output
  • Nano Pulse Control
  • Output capacitor-discharge function
  • Overvoltage protection (OVP)
  • Over-current protection (OCP)
  • Short circuit protection (SCP)
  • Thermal shutdown protection (TSD)
  • Under-voltage lockout protection (UVLO)
  • Backside heat dissipation, 0.5mm pitch
  • 3.0mm x 3.0mm x 0.40mm VMMP16LZ3030 Package


  • 4.5V to 36V Input voltage range
  • 0.6V to 14V Output voltage range
  • 5A (Max) Output current
  • 600kHz, 1MHz, 2.2MHz (Typ) Switching frequency
  • 40mΩ (Typ) High-side FET ON resistance
  • 22mΩ (Typ) Low-side FET ON resistance
  • 2μA (Typ) Shutdown current
  • 20μA (Typ) Operating quiescent current

more information:

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