.hide-partial { max-height: none; } .show-more { display: none; }

BD9x Integrated MOSFET DC-DC Buck Converters

ROHM Semiconductor BD9x Integrated MOSFET DC-DC Buck Converters are synchronous buck switching regulators with built-in power MOSFETs. These ICs provide currents in a range from 1A to 6A. ROHM BD9x DC-DC Buck Converters deliver fast transient response by employing a constant on-time control system. This allows high oscillating frequency at low inductance. The devices employ an original constant on-time control method that provides low consumption at light load. This feature makes these devices ideal for equipment that demands minimal standby power consumption.

All Results (136)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
LDO Voltage Regulators QuiCur, Automotive 500mA 3.3V, Fixed Output LDO Regulators With Enable Input BD933M5WEFJ-CE2 ROHM Semiconductor 1: 1,07 € 4.951In Stock	Mfr. Part No. BD933M5WEFJ-CE2 Mouser Part No 755-BD933M5WEFJ-CE2	ROHM Semiconductor	LDO Voltage Regulators QuiCur, Automotive 500mA 3.3V, Fixed Output LDO Regulators With Enable Input Learn More about ROHM Semiconductor rohm quicur regulators	Datasheet	4.951In Stock	Cut Tape 1,07 € 0,77 € 0,697 € 0,629 € Reel 0,525 € View 0,589 € 0,566 € 0,555 € 0,502 €	Min.: 1 Mult.: 1 : 2.500
LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators BD950M5EFJ-CE2 ROHM Semiconductor 1: 1,07 € 2.514In Stock	Mfr. Part No. BD950M5EFJ-CE2 Mouser Part No 755-BD950M5EFJ-CE2	ROHM Semiconductor	LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators Learn More about ROHM Semiconductor rohm quicur regulators	Datasheet	2.514In Stock	Cut Tape 1,07 € 0,77 € 0,697 € 0,617 € Reel 0,525 € View 0,578 € 0,555 € 0,537 € 0,502 €	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators 2.7 V to 5.5 V Input, 2 A Integrated MOSFET Single Synchronous Buck DC/DC Converter BD9A201FP4-LBZTL ROHM Semiconductor 1: 1,37 € 3.378In Stock	Mfr. Part No. BD9A201FP4-LBZTL Mouser Part No 755-BD9A201FP4-LBZTL	ROHM Semiconductor	Switching Voltage Regulators 2.7 V to 5.5 V Input, 2 A Integrated MOSFET Single Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3.378In Stock	Cut Tape 1,37 € 0,998 € 0,912 € 0,805 € Reel 0,676 € View 0,757 € 0,728 € 0,722 € 0,673 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators 4.5V to 28V Input, 1.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E105FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char BD9E105FP4-ZTL ROHM Semiconductor 1: 1,31 € 7.663In Stock	Mfr. Part No. BD9E105FP4-ZTL Mouser Part No 755-BD9E105FP4-ZTL	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 28V Input, 1.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E105FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	7.663In Stock	Cut Tape 1,31 € 0,955 € 0,869 € 0,766 € Reel 0,65 € View 0,72 € 0,692 € 0,685 € 0,639 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter BD9E202FP4-ZTL ROHM Semiconductor 1: 0,783 € 3.491In Stock	Mfr. Part No. BD9E202FP4-ZTL Mouser Part No 755-BD9E202FP4-ZTL	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3.491In Stock	Cut Tape 0,783 € 0,559 € 0,504 € 0,443 € Reel 0,371 € View 0,414 € 0,396 € 0,384 € 0,36 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators 4.5V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: This is the product guarantees long time support in Industrial market. BD9E304FP4-LBZ is a single synchronous buck DC/DC converter with built-in low on-resistance powe BD9E304FP4-LBZTL ROHM Semiconductor 1: 1,63 € 6.378In Stock	Mfr. Part No. BD9E304FP4-LBZTL Mouser Part No 755-BD9E304FP4-LBZTL	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: This is the product guarantees long time support in Industrial market. BD9E304FP4-LBZ is a single synchronous buck DC/DC converter with built-in low on-resistance powe Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	6.378In Stock	Cut Tape 1,63 € 1,20 € 1,09 € 0,972 € Reel 0,829 € View 0,92 € 0,886 € 0,813 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators Nano Pulse Control 3.5V to 40V Input, 2A Single 2.2MHz Buck DC/DC Converter For Automotive: BD9P208MUF-C is current mode synchronous buck DC/DC converter integrating POWER MOSFETs. BD9P208MUF-CE2 ROHM Semiconductor 1: 1,81 € 4.433In Stock	Mfr. Part No. BD9P208MUF-CE2 Mouser Part No 755-BD9P208MUF-CE2	ROHM Semiconductor	Switching Voltage Regulators Nano Pulse Control 3.5V to 40V Input, 2A Single 2.2MHz Buck DC/DC Converter For Automotive: BD9P208MUF-C is current mode synchronous buck DC/DC converter integrating POWER MOSFETs. Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	4.433In Stock	Cut Tape 1,81 € 1,34 € 1,22 € 1,09 € Reel 0,946 € View 1,03 € 0,998 € 0,972 € 0,929 €	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators Nano Pulse Control, 3.5V to 40V Input, 6.0A Single Buck DC/DC Converter For Automotive: BD9P608MFF-C is current mode synchronous buck DC/DC converter integrating POWER MOSFETs. BD9P608MFF-CE2 ROHM Semiconductor 1: 3,00 € 9.802In Stock	Mfr. Part No. BD9P608MFF-CE2 Mouser Part No 755-BD9P608MFF-CE2	ROHM Semiconductor	Switching Voltage Regulators Nano Pulse Control, 3.5V to 40V Input, 6.0A Single Buck DC/DC Converter For Automotive: BD9P608MFF-C is current mode synchronous buck DC/DC converter integrating POWER MOSFETs. Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	9.802In Stock	Cut Tape 3,00 € 2,26 € 2,07 € 1,87 € Reel 1,64 € View 1,77 € 1,75 € 1,70 € 1,62 €	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators DC/DC Converter 7V to 36V input BD9E303EFJ-LBE2 ROHM Semiconductor 1: 2,92 € 14.266In Stock	Mfr. Part No. BD9E303EFJ-LBE2 Mouser Part No 755-BD9E303EFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators DC/DC Converter 7V to 36V input Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	14.266In Stock	Cut Tape 2,92 € 2,19 € 2,01 € 1,81 € View Reel 1,58 € 1,72 € 1,69 € 1,64 € 1,58 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators 1ch Buck Converter Integrated FET BD9G341AEFJ-E2 ROHM Semiconductor 1: 3,68 € 7.931In Stock	Mfr. Part No. BD9G341AEFJ-E2 Mouser Part No 755-BD9G341AEFJ-E2	ROHM Semiconductor	Switching Voltage Regulators 1ch Buck Converter Integrated FET Learn More about ROHM Semiconductor rohm bd9g341aefj converter	Datasheet	7.931In Stock	Cut Tape 3,68 € 2,78 € 2,55 € 2,30 € View Reel 2,03 € 2,18 € 2,17 € 2,12 € 2,03 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Power Management IC Development Tools Evaluation board for BD9E302EFJ BD9E302EFJ-EVK-001 ROHM Semiconductor 1: 30,49 € 5In Stock	Mfr. Part No. BD9E302EFJ-EVK-001 Mouser Part No 755-BD9E302EFJEVK001	ROHM Semiconductor	Power Management IC Development Tools Evaluation board for BD9E302EFJ Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	5In Stock	30,49 €	Min.: 1 Mult.: 1
Power Management IC Development Tools Evaluation board for BD9G401EFJ BD9G401EFJ-EVK-001 ROHM Semiconductor 1: 32,96 € 11In Stock	Mfr. Part No. BD9G401EFJ-EVK-001 Mouser Part No 755-BD9G401EFJEVK001	ROHM Semiconductor	Power Management IC Development Tools Evaluation board for BD9G401EFJ Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	11In Stock	32,96 €	Min.: 1 Mult.: 1
Switching Voltage Regulators High Eff. Stepdown Sw. Reg. 2A 4.5-5.5V BD9111NV-E2 ROHM Semiconductor 1: 3,13 € 1.101In Stock	Mfr. Part No. BD9111NV-E2 Mouser Part No 755-BD9111NV-E2	ROHM Semiconductor	Switching Voltage Regulators High Eff. Stepdown Sw. Reg. 2A 4.5-5.5V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	1.101In Stock	Cut Tape 3,13 € 2,37 € 2,17 € 1,95 € Reel 1,66 € View 1,86 € 1,83 € 1,75 € 1,63 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000
LDO Voltage Regulators QuiCur, Automotive 500mA, Adjustable Output LDO Regulators With Enable Input BD900M5WEFJ-CE2 ROHM Semiconductor 1: 1,07 € 449In Stock 10.000On Order	Mfr. Part No. BD900M5WEFJ-CE2 Mouser Part No 755-BD900M5WEFJ-CE2	ROHM Semiconductor	LDO Voltage Regulators QuiCur, Automotive 500mA, Adjustable Output LDO Regulators With Enable Input Learn More about ROHM Semiconductor rohm quicur regulators	Datasheet	449In Stock 10.000On Order On Order Ship Dates Mfr. No: BD900M5WEFJ-CE2 Stock: 449 Can Dispatch Immediately On Order: 2.500 Expected 1/27/2027 7.500 Expected 2/1/2027 Factory Lead Time: 18 Weeks	Cut Tape 1,07 € 0,77 € 0,697 € 0,629 € Reel 0,514 € View 0,589 € 0,566 € 0,555 € 0,502 €	Min.: 1 Mult.: 1 : 2.500
LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators With Enable Input BD950M5WEFJ-CE2 ROHM Semiconductor 1: 1,09 € 2.075In Stock	Mfr. Part No. BD950M5WEFJ-CE2 Mouser Part No 755-BD950M5WEFJ-CE2	ROHM Semiconductor	LDO Voltage Regulators QuiCur, Automotive 500mA 5.0V, Fixed Output LDO Regulators With Enable Input Learn More about ROHM Semiconductor rohm quicur regulators	Datasheet	2.075In Stock	Cut Tape 1,09 € 0,785 € 0,711 € 0,629 € Reel 0,514 € View 0,589 € 0,566 € 0,555 € 0,502 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators 4.5V to 26V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E200FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char BD9E200FP4-ZTL ROHM Semiconductor 1: 1,31 € 6.810In Stock	Mfr. Part No. BD9E200FP4-ZTL Mouser Part No 755-BD9E200FP4-ZTL	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 26V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E200FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. The Light Load Mode control provides excellent efficiency char Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	6.810In Stock	Cut Tape 1,31 € 0,955 € 0,869 € 0,766 € Reel 0,637 € View 0,72 € 0,692 € 0,685 € 0,626 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators PMIC, Step-Down DC/DC, 4.5V 28V, 2A BD9E203FP4-ZTL ROHM Semiconductor 1: 0,783 € 1.525In Stock	Mfr. Part No. BD9E203FP4-ZTL Mouser Part No 755-BD9E203FP4-ZTL	ROHM Semiconductor	Switching Voltage Regulators PMIC, Step-Down DC/DC, 4.5V 28V, 2A Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	1.525In Stock	Cut Tape 0,783 € 0,559 € 0,504 € 0,443 € Reel 0,362 € View 0,414 € 0,396 € 0,384 € 0,36 €	Min.: 1 Mult.: 1 : 3.500
Switching Voltage Regulators 7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter BD9E303UEFJ-LBH2 ROHM Semiconductor 1: 4,61 € 157In Stock	Mfr. Part No. BD9E303UEFJ-LBH2 Mouser Part No 755-BD9E303UEFJ-LBH2	ROHM Semiconductor	Switching Voltage Regulators 7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	157In Stock	Cut Tape 4,61 € 3,51 € 3,24 € 2,96 € Reel 2,95 € View 2,75 € 2,73 € 2,72 €	Min.: 1 Mult.: 1 : 250
Switching Voltage Regulators BUCK SWITCHING REG IC BD9G201UEFJ-ME2 ROHM Semiconductor 1: 2,00 € 498In Stock	Mfr. Part No. BD9G201UEFJ-ME2 Mouser Part No 755-BD9G201UEFJ-ME2	ROHM Semiconductor	Switching Voltage Regulators BUCK SWITCHING REG IC Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	498In Stock	Cut Tape 2,00 € 1,48 € 1,35 € 1,21 € Reel 1,02 € View 1,14 € 1,11 € 1,07 € 1,01 €	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators IC Pwr Swtch Reg Multi Output BD93291EFJ-E2 ROHM Semiconductor 1: 0,98 € 4.085In Stock	Mfr. Part No. BD93291EFJ-E2 Mouser Part No 755-BD93291EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Multi Output Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	4.085In Stock	Cut Tape 0,98 € 0,72 € 0,65 € 0,574 € Reel 0,478 € View 0,538 € 0,516 € 0,504 € 0,451 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD95861MUV-E2 ROHM Semiconductor 1: 1,65 € 7.803In Stock	Mfr. Part No. BD95861MUV-E2 Mouser Part No 755-BD95861MUV-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	7.803In Stock	Cut Tape 1,65 € 1,22 € 1,11 € 0,989 € Reel 0,837 € View 0,937 € 0,903 € 0,836 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators 900 kHz SINGLE CHAN STEP DOWN SWITCHING BD9870FPS-E2 ROHM Semiconductor 1: 1,63 € 2.942In Stock	Mfr. Part No. BD9870FPS-E2 Mouser Part No 755-BD9870FPS-E2	ROHM Semiconductor	Switching Voltage Regulators 900 kHz SINGLE CHAN STEP DOWN SWITCHING Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2.942In Stock	Cut Tape 1,63 € 1,20 € 1,10 € 0,98 € Reel 0,851 € View 0,92 € 0,886 € 0,811 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Switching Voltage Regulators 4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter BD9C401EFJ-E2 ROHM Semiconductor 1: 1,53 € 2.041In Stock	Mfr. Part No. BD9C401EFJ-E2 Mouser Part No 755-BD9C401EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2.041In Stock	Cut Tape 1,53 € 1,13 € 1,02 € 0,912 € Reel 0,765 € View 0,857 € 0,825 € 0,821 € 0,748 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators RECT 650V 15A SM SCHOTTKY BD9C601EFJ-E2 ROHM Semiconductor 1: 2,00 € 1.200In Stock	Mfr. Part No. BD9C601EFJ-E2 Mouser Part No 755-BD9C601EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators RECT 650V 15A SM SCHOTTKY Learn More about ROHM Semiconductor rohm bd9c601efjevk 101 board	Datasheet	1.200In Stock	Cut Tape 2,00 € 1,48 € 1,35 € 1,21 € Reel 1,02 € View 1,14 € 1,11 € 1,08 € 1,01 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD9D320EFJ-E2 ROHM Semiconductor 1: 0,662 € 6.935In Stock 42.500On Order	Mfr. Part No. BD9D320EFJ-E2 Mouser Part No 755-BD9D320EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	6.935In Stock 42.500On Order On Order Ship Dates Mfr. No: BD9D320EFJ-E2 Stock: 6.935 Can Dispatch Immediately On Order: 15.000 Expected 12/21/2026 27.500 Expected 12/28/2026 Factory Lead Time: 14 Weeks	Cut Tape 0,662 € 0,465 € 0,417 € 0,365 € Reel 0,298 € View 0,339 € 0,324 € 0,311 € 0,29 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500