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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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Part #

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9859EFJ-E2
ROHM Semiconductor
1: $1.29
1,005In Stock

Mfr. Part #
BD9859EFJ-E2

Mouser Part #
755-BD9859EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Datasheet

1,005In Stock

Cut Tape

$1.29

$0.93

$0.842

$0.744

Reel

$0.621

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

BD9E303UEFJ-LBE2
ROHM Semiconductor
1: $2.43
228In Stock
NRND

Mfr. Part #
BD9E303UEFJ-LBE2

Mouser Part #
755-BD9E303UEFJ-LBE2

NRND

ROHM Semiconductor

Switching Voltage Regulators 7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

Datasheet

228In Stock

Cut Tape

$2.43

$1.80

$1.65

$1.48

Reel

$1.25

View

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 3.3V Output Voltage

BD9109FVM-TR
ROHM Semiconductor
1: $2.20
356In Stock
NRND

Mfr. Part #
BD9109FVM-TR

Mouser Part #
755-BD9109FVM-TR

NRND

ROHM Semiconductor

Switching Voltage Regulators 3.3V Output Voltage

Datasheet

356In Stock

Cut Tape

$2.20

$1.66

$1.52

$1.36

Reel

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators 1ch Buck Cnvrtr 4.5-42V; HTSOP-J8ES

BD9G201EFJ-LBE2
ROHM Semiconductor
1: $2.47
406In Stock
NRND

Mfr. Part #
BD9G201EFJ-LBE2

Mouser Part #
755-BD9G201EFJ-LBE2

NRND

ROHM Semiconductor

Switching Voltage Regulators 1ch Buck Cnvrtr 4.5-42V; HTSOP-J8ES

Datasheet

406In Stock

Cut Tape

$2.47

$1.84

$1.68

$1.50

Reel

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 12-76V 1Ch Buck Conv w/ Integrated FET

BD9G341AEFJ-LBE2
ROHM Semiconductor
1: $5.10
4,892Expected 9/25/2026

Mfr. Part #
BD9G341AEFJ-LBE2

Mouser Part #
755-BD9G341AEFJ-LBE2

ROHM Semiconductor

Switching Voltage Regulators 12-76V 1Ch Buck Conv w/ Integrated FET

Datasheet

4,892Expected 9/25/2026

Cut Tape

$5.10

$3.86

$3.55

$3.21

View

Reel

$2.70

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: $4.13
250Expected 9/21/2026

Mfr. Part #
BD9C301FJ-LBGH2

Mouser Part #
755-BD9C301FJ-LBGH2

ROHM Semiconductor

Switching Voltage Regulators Ind Bck Sync 4.5-18V w/ Integrated FET

Datasheet

250Expected 9/21/2026

Cut Tape

$4.13

$3.12

$2.87

$2.59

Reel

$2.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators Power Management Switches

BD9106FVM-LBTR
ROHM Semiconductor
1: $2.56
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BD9106FVM-LBTR

Mouser Part #
755-BD9106FVM-LBTR

ROHM Semiconductor

Switching Voltage Regulators Power Management Switches

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$2.56

$1.90

$1.74

$1.56

Reel

$1.32

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators 1.0-2.5V Output With Bulit in MOSFET

BD9130NV-E2
ROHM Semiconductor
2,000: $1.96
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BD9130NV-E2

Mouser Part #
755-BD9130NV-E2

ROHM Semiconductor

Switching Voltage Regulators 1.0-2.5V Output With Bulit in MOSFET

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.96

$1.94

Min.: 2,000
Mult.: 2,000

: 2,000

Power Management IC Development Tools Evaluation board for BD9E104FJ

BD9E104FJ-EVK-001
ROHM Semiconductor
1: $34.09
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BD9E104FJ-EVK-001

Mouser Part #
755-BD9E104FJ-EVK001

ROHM Semiconductor

Power Management IC Development Tools Evaluation board for BD9E104FJ

Datasheet

Non-Stocked Lead-Time 12 Weeks

$34.09

Min.: 1
Mult.: 1

Switching Voltage Regulators 4CH Internal Pwr MOSFET Reg

BD9866GUL-E2
ROHM Semiconductor
2,500: $2.55
Non-Stocked Lead-Time 16 Weeks

Mfr. Part #
BD9866GUL-E2

Mouser Part #
755-BD9866GUL-E2

ROHM Semiconductor

Switching Voltage Regulators 4CH Internal Pwr MOSFET Reg

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$2.55

Min.: 2,500
Mult.: 2,500

: 2,500

Switching Voltage Regulators

BD9261EFV-E2
ROHM Semiconductor
2,500: $1.46
Non-Stocked

Mfr. Part #
BD9261EFV-E2

Mouser Part #
755-BD9261EFV-E2

ROHM Semiconductor

Switching Voltage Regulators

Non-Stocked

Reel

$1.46

$1.45

Min.: 2,500
Mult.: 2,500

: 2,500