2.7V to 5.5V, 2.0A 1ch Synchronous Buck Converter with Integrated FET

Topology: Buck
Input Voltage (min.): 2.70 V
Input Voltage (max.): 5.50 V
Switching Frequency (min.): 800.00 kHz
Switching Frequency (max.): 1200.00 kHz
Output 1: 2.50 V / 2.000 A

Original publication on 2016-08-15, revision 003


BD9130NV is ROHM’s high efficiency step-down switching regulator designed to provide a voltage as low as 1V from a supply voltage of 5.5V/3.3V. It offers high efficiency by using pulse skip control technology and synchronous switches, and provides fast transient response to sudden load changes by implementing current mode control.


  • Fast Transient Response because of Current Mode PWM Control System
  • High Efficiency for All Load Ranges because of Synchronous Switches (Nch/Pch FET) and SLLM (Simple Light Load Mode)
  • Soft-Start Function
  • Thermal Shutdown and UVLO Functions
  • Short-Circuit Protection with Time Delay Function
  • Shutdown Function


  Order Code SPEC Product series L
RDC typ.
RDC max.
Montageart Samples
74438336022 PDF WE-MAPI SMT Power Inductor 2.2 2.4 4.3 67 80 42 SMT