4.5V to 13.2V, 2A 1ch Synchronous Buck Converter with Integrated FET

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 13.20 V
Switching Frequency (min.): 400.00 kHz
Switching Frequency (max.): 600.00 kHz
Output 1: 2.50 V / 2.000 A
Output 2: 3.30 V / 2.000 A

Original publication on 2016-08-12, revision Rev.001


The BD9141MUV is ROHM’s high efficiencystep-down switching regulator designed to produce alow voltage including 5.0V/3.3V from 2 lithium cellpower supply line. It offers high efficiency by usingpulse skip control technology and synchronousswitches, and provides fast transient response tosudden load changes by implementing current modecontrol.


  • ■ Fast Transient Response because of Current ModePWM Control System■ High Efficiency for All Load Ranges because ofSynchronous Rectifier (Nch/Pch FET) and SLLMTM(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
74437336047 PDF WE-LHMI SMT Power Inductor 4.7 3.9 5.9 50 53 25 SMT

Other applications and Würth Elektronik products for this IC

  • BD9141MUV
    Topology: Buck, Input Voltage (min.): 6.30 V, Input Voltage (max.): 13.20 V, Switching Frequency (min.): 400.00 kHz, Switching Frequency (max.): 600.00 kHz, Output 1: 5.00 V / 2.000 A