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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 IC Pwr Swtch Reg Integrated FET BD9A300MUV-E2 ROHM Semiconductor 1: €0.92 5,937Expected 28/01/2027	Mfr. Part No. BD9A300MUV-E2 Mouser Part No 755-BD9A300MUV-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	5,937Expected 28/01/2027	Cut Tape €0.92 €0.656 €0.591 €0.519 Reel €0.43 View €0.486 €0.465 €0.451 €0.421 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Switching Voltage Regulators 4.5-18Vin,3A MOSFET DC/DC Converter BD9C301FJ-E2 ROHM Semiconductor 1: €1.31 9,298Expected 28/01/2027	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	9,298Expected 28/01/2027	Cut Tape €1.31 €0.955 €0.869 €0.764 Reel €0.639 View €0.717 €0.69 €0.681 €0.625 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Voltage Regulators 7-26V; 1A MOSFET S. Sync Buck DC/DC BD9E104FJ-E2 ROHM Semiconductor 1: €0.98 4,944On Order	Mfr. Part No. BD9E104FJ-E2 Mouser Part No 755-BD9E104FJ-E2	ROHM Semiconductor	Switching Voltage Regulators 7-26V; 1A MOSFET S. Sync Buck DC/DC Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	4,944On Order On Order Ship Dates Mfr. No: BD9E104FJ-E2 Stock: 0 On Order: 2,444 Expected 29/10/2026 2,500 Expected 17/05/2027 Factory Lead Time: 14 Weeks	Cut Tape €0.98 €0.707 €0.639 €0.549 View Reel €0.449 €0.513 €0.492 €0.477 €0.449 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Switching Voltage Regulators 12-76V 1Ch Buck Conv w/ Integrated FET BD9G341AEFJ-LBE2 ROHM Semiconductor 1: €4.39 4,892Expected 03/11/2026	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	4,892Expected 03/11/2026	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 20/11/2026	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 20/11/2026	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: €2.27 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 €2.27 €1.69 €1.54 €1.38 View Reel €1.15 €1.30 €1.26 €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: €3.16 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 €3.16 €2.38 €2.18 €1.97 Reel €1.69 View €1.87 €1.86 €1.78 €1.67 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Power Management IC Development Tools Evaluation board for BD9E104FJ BD9E104FJ-EVK-001 ROHM Semiconductor 1: €30.49 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	€30.49	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 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 Non-Stocked Lead-Time 20 Weeks	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	Non-Stocked Lead-Time 20 Weeks	Cut Tape €1.31 €0.955 €0.869 €0.766 Reel €0.654 View €0.72 €0.692 €0.685 €0.636	Min.: 1 Mult.: 1 : 3,500
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