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

BD9E303UEFJ-LBH2
ROHM Semiconductor
1: $7.21
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

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Datasheet

157In Stock

Cut Tape

$7.21

$5.49

$5.06

$4.60

Reel

$4.35

View

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators BUCK SWITCHING REG IC

BD9G201UEFJ-ME2
ROHM Semiconductor
1: $3.16
498In Stock

Mfr. Part No.
BD9G201UEFJ-ME2

Mouser Part No
755-BD9G201UEFJ-ME2

ROHM Semiconductor

Switching Voltage Regulators BUCK SWITCHING REG IC

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Datasheet

498In Stock

Cut Tape

$3.16

$2.34

$2.14

$1.92

Reel

$1.62

View

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Multi Output

BD93291EFJ-E2
ROHM Semiconductor
1: $1.55
4,236In Stock

Mfr. Part No.
BD93291EFJ-E2

Mouser Part No
755-BD93291EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Multi Output

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Datasheet

4,236In Stock

Cut Tape

$1.55

$1.14

$1.03

$0.907

Reel

$0.756

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD95861MUV-E2
ROHM Semiconductor
1: $2.30
9,309In Stock

Mfr. Part No.
BD95861MUV-E2

Mouser Part No
755-BD95861MUV-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

9,309In Stock

Cut Tape

$2.30

$1.69

$1.54

$1.37

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 900 kHz SINGLE CHAN STEP DOWN SWITCHING

BD9870FPS-E2
ROHM Semiconductor
1: $2.58
2,507In Stock
2,000Expected 17/9/2026

Mfr. Part No.
BD9870FPS-E2

Mouser Part No
755-BD9870FPS-E2

ROHM Semiconductor

Switching Voltage Regulators 900 kHz SINGLE CHAN STEP DOWN SWITCHING

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Datasheet

2,507In Stock

2,000Expected 17/9/2026

Cut Tape

$2.58

$1.90

$1.74

$1.55

Reel

$1.35

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Switching Voltage Regulators 2.7V To 5.5 MOSFET DC/DC Conv

BD9B301MUV-LBE2
ROHM Semiconductor
1: $4.53
825In Stock

Mfr. Part No.
BD9B301MUV-LBE2

Mouser Part No
755-BD9B301MUV-LBE2

ROHM Semiconductor

Switching Voltage Regulators 2.7V To 5.5 MOSFET DC/DC Conv

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Datasheet

825In Stock

Cut Tape

$4.53

$3.40

$3.13

$2.82

Reel

$2.39

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators 4.5-18Vin,3A MOSFET DC/DC Converter

BD9C301FJ-E2
ROHM Semiconductor
1: $2.00
7,042In Stock

Mfr. Part No.
BD9C301FJ-E2

Mouser Part No
755-BD9C301FJ-E2

ROHM Semiconductor

Switching Voltage Regulators 4.5-18Vin,3A MOSFET DC/DC Converter

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Datasheet

7,042In Stock

Cut Tape

$2.00

$1.47

$1.33

$1.18

Reel

$0.966

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators RECT 650V 15A SM SCHOTTKY

BD9C601EFJ-E2
ROHM Semiconductor
1: $3.16
1,450In Stock

Mfr. Part No.
BD9C601EFJ-E2

Mouser Part No
755-BD9C601EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators RECT 650V 15A SM SCHOTTKY

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Datasheet

1,450In Stock

Cut Tape

$3.16

$2.34

$2.12

$1.92

Reel

$1.62

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9D320EFJ-E2
ROHM Semiconductor
1: $0.911
17,085In Stock
15,000Expected 9/11/2026

Mfr. Part No.
BD9D320EFJ-E2

Mouser Part No
755-BD9D320EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Learn More

Datasheet

17,085In Stock

15,000Expected 9/11/2026

Cut Tape

$0.911

$0.649

$0.582

$0.509

Reel

$0.416

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9D321EFJ-E2
ROHM Semiconductor
1: $0.938
7,570In Stock

Mfr. Part No.
BD9D321EFJ-E2

Mouser Part No
755-BD9D321EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

7,570In Stock

Cut Tape

$0.938

$0.662

$0.596

$0.521

Reel

$0.42

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators SD Switching Reg

BD9G101G-TR
ROHM Semiconductor
1: $2.14
12,881In Stock

Mfr. Part No.
BD9G101G-TR

Mouser Part No
755-BD9G101G-TR

ROHM Semiconductor

Switching Voltage Regulators SD Switching Reg

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Datasheet

12,881In Stock

Cut Tape

$2.14

$1.56

$1.41

$1.26

Reel

$1.05

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators Buck Conv Intgtd FET 0.5A 1ch; 6V-24V

BD9G102G-LBTR
ROHM Semiconductor
1: $2.14
7,183In Stock
9,000Expected 14/8/2026

Mfr. Part No.
BD9G102G-LBTR

Mouser Part No
755-BD9G102G-LBTR

ROHM Semiconductor

Switching Voltage Regulators Buck Conv Intgtd FET 0.5A 1ch; 6V-24V

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Datasheet

Product Comments

7,183In Stock

9,000Expected 14/8/2026

Cut Tape

$2.14

$1.58

$1.43

$1.26

Reel

$1.01

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators Power Supply IC T/R

BD9161FVM-LBTR
ROHM Semiconductor
1: $2.76
2,994In Stock
NRND

Mfr. Part No.
BD9161FVM-LBTR

Mouser Part No
755-BD9161FVM-LBTR

NRND

ROHM Semiconductor

Switching Voltage Regulators Power Supply IC T/R

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Datasheet

2,994In Stock

Cut Tape

$2.76

$2.72

$2.49

$2.34

Reel

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9326EFJ-E2
ROHM Semiconductor
1: $2.16
1,315In Stock

Mfr. Part No.
BD9326EFJ-E2

Mouser Part No
755-BD9326EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Learn More

Datasheet

1,315In Stock

Cut Tape

$2.16

$1.59

$1.44

$1.28

Reel

$1.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter

BD9E300UEFJ-LBH2
ROHM Semiconductor
1: $6.88
250In Stock

Mfr. Part No.
BD9E300UEFJ-LBH2

Mouser Part No
755-BD9E300UEFJ-LBH2

ROHM Semiconductor

Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter

Learn More

Datasheet

250In Stock

Cut Tape

$6.88

$5.24

$4.83

$4.38

Reel

$4.15

View

Min.: 1
Mult.: 1

: 250

Switching Controllers 60V Synchronous Step-down Regulator

BD9611MUV-E2
ROHM Semiconductor
1: $3.66
1,134In Stock
2,500Expected 26/1/2027

Mfr. Part No.
BD9611MUV-E2

Mouser Part No
755-BD9611MUV-E2

ROHM Semiconductor

Switching Controllers 60V Synchronous Step-down Regulator

Learn More

Datasheet

1,134In Stock

2,500Expected 26/1/2027

Cut Tape

$3.66

$2.68

$2.46

$2.03

Reel

$1.47

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9873CP-V5E2
ROHM Semiconductor
1: $2.43
260In Stock
500Expected 8/10/2026

Mfr. Part No.
BD9873CP-V5E2

Mouser Part No
755-BD9873CP-V5E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Learn More

Datasheet

260In Stock

500Expected 8/10/2026

Cut Tape

$2.43

$1.80

$1.63

$1.46

Reel

$1.34

View

Min.: 1
Mult.: 1

: 500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9874CP-V5E2
ROHM Semiconductor
1: $2.75
387In Stock

Mfr. Part No.
BD9874CP-V5E2

Mouser Part No
755-BD9874CP-V5E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

Learn More

Datasheet

387In Stock

Cut Tape

$2.75

$2.03

$1.85

$1.65

Reel

$1.47

View

Min.: 1
Mult.: 1

: 500

Switching Voltage Regulators 2.7V-5.5V 6A MOSFET Sngl Sync Buck Conv

BD9A600MUV-E2
ROHM Semiconductor
1: $1.59
980In Stock
21,000On 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

Datasheet

980In Stock

21,000On Order

Cut Tape

$1.59

$1.15

$1.04

$0.917

Reel

$0.775

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators Ind Buck Sync 7-36V w/ Integrated FET

BD9E100FJ-LBGH2
ROHM Semiconductor
1: $4.81
100In Stock
250Expected 2/12/2026

Mfr. Part No.
BD9E100FJ-LBGH2

Mouser Part No
755-BD9E100FJ-LBGH2

ROHM Semiconductor

Switching Voltage Regulators Ind Buck Sync 7-36V w/ Integrated FET

Learn More

Datasheet

100In Stock

250Expected 2/12/2026

Cut Tape

$4.81

$3.63

$3.33

$3.01

Reel

$2.83

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators Ind Buck Sync 7-36V w/ Integrated FET

BD9E101FJ-LBGH2
ROHM Semiconductor
1: $4.81
139In Stock

Mfr. Part No.
BD9E101FJ-LBGH2

Mouser Part No
755-BD9E101FJ-LBGH2

ROHM Semiconductor

Switching Voltage Regulators Ind Buck Sync 7-36V w/ Integrated FET

Learn More

Datasheet

139In Stock

Cut Tape

$4.81

$3.63

$3.33

$3.01

Reel

$2.82

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators 7-26V; 1A MOSFET S. Sync Buck DC/DC

BD9E104FJ-E2
ROHM Semiconductor
1: $1.47
38In Stock
2,500Expected 29/10/2026

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

Datasheet

38In Stock

2,500Expected 29/10/2026

Cut Tape

$1.47

$1.06

$0.953

$0.84

Reel

$0.699

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 7-28V 3A Int MOSFET Buck DC/DC Conv IC

BD9E302EFJ-E2
ROHM Semiconductor
1: $1.54
2,086In Stock
17,500On Order

Mfr. Part No.
BD9E302EFJ-E2

Mouser Part No
755-BD9E302EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators 7-28V 3A Int MOSFET Buck DC/DC Conv IC

Learn More

Datasheet

2,086In Stock

17,500On Order

Cut Tape

$1.54

$1.11

$1.00

$0.883

View

Reel

$0.71

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators High Eff. Stepdown Sw Reg 2A 4.5-13.2V

BD9141MUV-E2
ROHM Semiconductor
1: $5.44
52In Stock

Mfr. Part No.
BD9141MUV-E2

Mouser Part No
755-BD9141MUV-E2

ROHM Semiconductor

Switching Voltage Regulators High Eff. Stepdown Sw Reg 2A 4.5-13.2V

Learn More

Datasheet

52In Stock

Cut Tape

$5.44

$4.07

$3.71

$3.33

Reel

$2.88

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 4.2-18V 100-800kHz 1 Chan Step-Up

BD9306AFVM-TR
ROHM Semiconductor
1: $2.22
691In Stock

Mfr. Part No.
BD9306AFVM-TR

Mouser Part No
755-BD9306AFVM-TR

ROHM Semiconductor

Switching Voltage Regulators 4.2-18V 100-800kHz 1 Chan Step-Up

Learn More

Datasheet

691In Stock

Cut Tape

$2.22

$1.63

$1.48

$1.31

Reel

$1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

BD9x Integrated MOSFET DC-DC Buck Converters

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BD9x Integrated MOSFET DC-DC Buck Converters

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