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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: $1.75
1,005In Stock

Mfr. Part No.
BD9859EFJ-E2

Mouser Part No
755-BD9859EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Datasheet

1,005In Stock

Cut Tape

$1.75

$1.26

$1.15

$1.01

Reel

$0.845

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: $3.30
228In Stock
NRND

Mfr. Part No.
BD9E303UEFJ-LBE2

Mouser Part No
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

$3.30

$2.45

$2.24

$2.01

Reel

$1.70

View

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 3.3V Output Voltage

BD9109FVM-TR
ROHM Semiconductor
1: $2.99
356In Stock
NRND

Mfr. Part No.
BD9109FVM-TR

Mouser Part No
755-BD9109FVM-TR

NRND

ROHM Semiconductor

Switching Voltage Regulators 3.3V Output Voltage

Datasheet

356In Stock

Cut Tape

$2.99

$2.26

$2.07

$1.85

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: $3.36
406In Stock
NRND

Mfr. Part No.
BD9G201EFJ-LBE2

Mouser Part No
755-BD9G201EFJ-LBE2

NRND

ROHM Semiconductor

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

Datasheet

406In Stock

Cut Tape

$3.36

$2.50

$2.28

$2.04

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: $6.65
4,892Expected 25/9/2026

Mfr. Part No.
BD9G341AEFJ-LBE2

Mouser Part No
755-BD9G341AEFJ-LBE2

ROHM Semiconductor

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

Datasheet

4,892Expected 25/9/2026

Cut Tape

$6.65

$5.06

$4.66

$4.23

View

Reel

$3.67

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: $5.45
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

Datasheet

250Expected 20/11/2026

Cut Tape

$5.45

$4.12

$3.79

$3.43

Reel

$3.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators Power Management Switches

BD9106FVM-LBTR
ROHM Semiconductor
1: $3.48
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$3.48

$2.58

$2.37

$2.12

Reel

$1.80

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: $2.67
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$2.67

$2.64

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

: 2,000

Power Management IC Development Tools Evaluation board for BD9E104FJ

BD9E104FJ-EVK-001
ROHM Semiconductor
1: $46.36
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

Datasheet

Non-Stocked Lead-Time 12 Weeks

$46.36

Min.: 1
Mult.: 1

Switching Voltage Regulators 4CH Internal Pwr MOSFET Reg

BD9866GUL-E2
ROHM Semiconductor
2,500: $3.47
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

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$3.47

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

: 2,500

Switching Voltage Regulators

BD9261EFV-E2
ROHM Semiconductor
2,500: $1.99
Non-Stocked

Mfr. Part No.
BD9261EFV-E2

Mouser Part No
755-BD9261EFV-E2

ROHM Semiconductor

Switching Voltage Regulators

Non-Stocked

Reel

$1.99

$1.97

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

: 2,500