Synchronous Buck Converter with Integrated FET

Topology: Buck
Input Voltage (min.): 4.00 V
Input Voltage (max.): 5.50 V
Switching Frequency (min.): 800.00 kHz
Switching Frequency (max.): 1200.00 kHz
Output 1: 1.00 V / 0.800 A
Output 2: 2.50 V / 0.800 A
Output 3: 1.20 V / 0.800 A
Output 4: 1.50 V / 0.800 A
Output 5: 1.80 V / 0.800 A

Original publication on 2017-12-15, revision 004


The (BD9106FVM, BD9107FVM, BD9109FVM,BD9110NV, and BD9120HFN) are ROHM’s highefficiency step-down switching regulators designed toproduce a voltage as low as 1V from a supply voltage of3.3V or 5.0V. It offers high efficiency by usingsynchronous switches and provides fast transientresponse to sudden load changes by implementingcurrent mode control.


  • Fast Transient Response because of Current ModeControl System High Efficiency for All Load Ranges because ofSynchronous Switches (Nch and Pch FET) andSLLMTM (Simple Light Load Mode) Soft-Start Function Thermal Shutdown and ULVO Functions Short-Circuit Protection with Time Delay Function Shutdown Function


  Order Code SPEC Product series L
RDC typ.
Montageart Samples
744025004 PDF WE-TPC SMT Tiny Power Inductor 4.7 1.35 1.7 100 84 SMT