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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Switching Voltage Regulators 2.7V-5.5V 6A MOSFET Sngl Sync Buck Conv BD9A600MUV-E2 ROHM Semiconductor 1: 1,08 € 19 467On Order	Mfr. Part No. BD9A600MUV-E2 Mouser Part No 755-BD9A600MUV-E2	ROHM Semiconductor	Switching Voltage Regulators 2.7V-5.5V 6A MOSFET Sngl Sync Buck Conv Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	19 467On Order On Order Ship Dates Mfr. No: BD9A600MUV-E2 Stock: 0 On Order: 1 467 Expected 05/11/2026 3 000 Expected 17/11/2026 15 000 Expected 30/12/2026 Factory Lead Time: 14 Weeks	Cut Tape 1,08 € 0,782 € 0,708 € 0,639 € Reel 0,519 € View 0,599 € 0,563 € 0,545 € 0,516 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V BD9B200MUV-E2 ROHM Semiconductor 1: 0,963 € 3 000Expected 19/01/2027	Mfr. Part No. BD9B200MUV-E2 Mouser Part No 755-BD9B200MUV-E2	ROHM Semiconductor	Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3 000Expected 19/01/2027	Cut Tape 0,963 € 0,697 € 0,63 € 0,556 € Reel 0,459 € View 0,52 € 0,499 € 0,488 € 0,455 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Switching Voltage Regulators 4.5-18Vin,3A MOSFET DC/DC Converter BD9C301FJ-E2 ROHM Semiconductor 1: 1,26 € 9 588Expected 06/01/2027	Mfr. Part No. BD9C301FJ-E2 Mouser Part No 755-BD9C301FJ-E2	ROHM Semiconductor	Switching Voltage Regulators 4.5-18Vin,3A MOSFET DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	9 588Expected 06/01/2027	Cut Tape 1,26 € 0,929 € 0,839 € 0,744 € Reel 0,621 € View 0,698 € 0,672 € 0,663 € 0,619 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500
Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E201FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. BD9E201FP4-Z is a current mode control. It includes internal p BD9E201FP4-ZTL ROHM Semiconductor 1: 1,31 € 3 500Expected 21/01/2027	Mfr. Part No. BD9E201FP4-ZTL Mouser Part No 755-BD9E201FP4-ZTL	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 28V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter: BD9E201FP4-Z is a single synchronous buck DC/DC converter with built-in low on-resistance power MOSFETs. BD9E201FP4-Z is a current mode control. It includes internal p Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3 500Expected 21/01/2027	Cut Tape 1,31 € 0,955 € 0,869 € 0,81 € Reel 0,66 € View 0,784 € 0,769 € 0,764 € 0,654 €	Min.: 1 Mult.: 1 : 3 500
Switching Voltage Regulators 12-76V 1Ch Buck Conv w/ Integrated FET BD9G341AEFJ-LBE2 ROHM Semiconductor 1: 4,39 € 5 000Expected 03/12/2026	Mfr. Part No. BD9G341AEFJ-LBE2 Mouser Part No 755-BD9G341AEFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators 12-76V 1Ch Buck Conv w/ Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	5 000Expected 03/12/2026	Cut Tape 4,39 € 3,32 € 3,05 € 2,76 € View Reel 2,37 € 2,62 € 2,61 € 2,46 € 2,37 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500
Switching Voltage Regulators Ind Bck Sync 4.5-18V w/ Integrated FET BD9C301FJ-LBGH2 ROHM Semiconductor 1: 3,55 € 250Expected 03/12/2026	Mfr. Part No. BD9C301FJ-LBGH2 Mouser Part No 755-BD9C301FJ-LBGH2	ROHM Semiconductor	Switching Voltage Regulators Ind Bck Sync 4.5-18V w/ Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	250Expected 03/12/2026	Cut Tape 3,55 € 2,68 € 2,47 € 2,23 € Reel 2,11 € View 2,05 € 1,94 € 1,91 € MouseReel Available	Min.: 1 Mult.: 1 : 250
Switching Voltage Regulators Power Management Switches BD9106FVM-LBTR ROHM Semiconductor 1: 2,20 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. BD9106FVM-LBTR Mouser Part No 755-BD9106FVM-LBTR	ROHM Semiconductor	Switching Voltage Regulators Power Management Switches Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape 2,20 € 1,63 € 1,50 € 1,34 € View Reel 1,15 € 1,26 € 1,23 € 1,20 € 1,15 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000
Switching Voltage Regulators 1.0-2.5V Output With Bulit in MOSFET BD9130NV-E2 ROHM Semiconductor 1: 3,31 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. BD9130NV-E2 Mouser Part No 755-BD9130NV-E2	ROHM Semiconductor	Switching Voltage Regulators 1.0-2.5V Output With Bulit in MOSFET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape 3,31 € 2,48 € 2,27 € 2,04 € Reel 1,74 € View 1,94 € 1,88 € 1,81 € 1,73 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Power Management IC Development Tools Evaluation board for BD9E104FJ BD9E104FJ-EVK-001 ROHM Semiconductor 1: 33,93 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. BD9E104FJ-EVK-001 Mouser Part No 755-BD9E104FJ-EVK001	ROHM Semiconductor	Power Management IC Development Tools Evaluation board for BD9E104FJ Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	Non-Stocked Lead-Time 12 Weeks	33,93 €	Min.: 1 Mult.: 1
Switching Voltage Regulators 4CH Internal Pwr MOSFET Reg BD9866GUL-E2 ROHM Semiconductor 2 500: 2,24 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. BD9866GUL-E2 Mouser Part No 755-BD9866GUL-E2	ROHM Semiconductor	Switching Voltage Regulators 4CH Internal Pwr MOSFET Reg Learn More about ROHM Semiconductor rohm switching regulator boost converters	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel 2,24 €	Min.: 2 500 Mult.: 2 500 : 2 500
Switching Voltage Regulators ROHM Semiconductor BD9261EFV-E2 BD9261EFV-E2 ROHM Semiconductor 2 500: 1,26 € Non-Stocked	Mfr. Part No. BD9261EFV-E2 Mouser Part No 755-BD9261EFV-E2	ROHM Semiconductor	Switching Voltage Regulators Learn More about ROHM Semiconductor rohm industrial product solutions		Non-Stocked	Reel 1,26 € 1,25 €	Min.: 2 500 Mult.: 2 500 : 2 500