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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

BD9D320EFJ-E2
ROHM Semiconductor
1: $0.77
6,935In Stock
42,500On Order

Mfr. Part No.
BD9D320EFJ-E2

Mouser Part No
755-BD9D320EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

6,935In Stock

42,500On Order

Cut Tape

$0.77

$0.541

$0.485

$0.424

Reel

$0.347

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Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9D321EFJ-E2
ROHM Semiconductor
1: $0.69
7,048In 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

7,048In Stock

Cut Tape

$0.69

$0.487

$0.438

$0.383

View

Reel

$0.313

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators 7-36Vin,1A MOSFET DC/DC Converter

BD9E100FJ-LBGE2
ROHM Semiconductor
1: $3.94
2,997In Stock

Mfr. Part No.
BD9E100FJ-LBGE2

Mouser Part No
755-BD9E100FJ-LBGE2

ROHM Semiconductor

Switching Voltage Regulators 7-36Vin,1A MOSFET DC/DC Converter

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Datasheet

2,997In Stock

Cut Tape

$3.94

$2.97

$2.73

$2.47

View

Reel

$2.17

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators SD Switching Reg

BD9G101G-TR
ROHM Semiconductor
1: $1.57
4,446In Stock
12,000Expected 2027/02/11

Mfr. Part No.
BD9G101G-TR

Mouser Part No
755-BD9G101G-TR

ROHM Semiconductor

Switching Voltage Regulators SD Switching Reg

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Datasheet

4,446In Stock

12,000Expected 2027/02/11

Cut Tape

$1.57

$1.15

$1.04

$0.923

Reel

$0.772

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Min.: 1
Mult.: 1

: 3,000

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

BD9G102G-LBTR
ROHM Semiconductor
1: $1.57
13,373In Stock

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

13,373In Stock

Cut Tape

$1.57

$1.16

$1.05

$0.928

Reel

$0.776

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Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators Power Supply IC T/R

BD9161FVM-LBTR
ROHM Semiconductor
1: $2.04
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

$2.04

$2.00

$1.83

$1.72

Reel

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Min.: 1
Mult.: 1

: 3,000

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

BD9306AFVM-TR
ROHM Semiconductor
1: $1.63
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

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Datasheet

691In Stock

Cut Tape

$1.63

$1.20

$1.09

$0.962

Reel

$0.828

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9326EFJ-E2
ROHM Semiconductor
1: $1.97
711In Stock
2,500Expected 2027/01/06

Mfr. Part No.
BD9326EFJ-E2

Mouser Part No
755-BD9326EFJ-E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

711In Stock

2,500Expected 2027/01/06

Cut Tape

$1.97

$1.44

$1.31

$1.16

Reel

$0.977

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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: $5.06
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

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Datasheet

250In Stock

Cut Tape

$5.06

$3.85

$3.55

$3.22

Reel

$3.05

View

Min.: 1
Mult.: 1

: 250

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

BD9E301UEFJ-LBH2
ROHM Semiconductor
1: $5.06
250In Stock

Mfr. Part No.
BD9E301UEFJ-LBH2

Mouser Part No
755-BD9E301UEFJ-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

$5.06

$3.85

$3.55

$3.22

Reel

$3.05

View

Min.: 1
Mult.: 1

: 250

Switching Controllers 60V Synchronous Step-down Regulator

BD9611MUV-E2
ROHM Semiconductor
1: $2.33
1,112In Stock
2,500Expected 2027/01/26

Mfr. Part No.
BD9611MUV-E2

Mouser Part No
755-BD9611MUV-E2

ROHM Semiconductor

Switching Controllers 60V Synchronous Step-down Regulator

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Datasheet

1,112In Stock

2,500Expected 2027/01/26

Cut Tape

$2.33

$1.72

$1.57

$1.41

Reel

$1.19

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Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9873CP-V5E2
ROHM Semiconductor
1: $3.41
260In Stock
500Expected 2026/10/09

Mfr. Part No.
BD9873CP-V5E2

Mouser Part No
755-BD9873CP-V5E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

260In Stock

500Expected 2026/10/09

Cut Tape

$3.41

$2.51

$2.28

$2.04

Reel

$1.87

View

Min.: 1
Mult.: 1

: 500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9874CP-V5E2
ROHM Semiconductor
1: $2.02
387In Stock

Mfr. Part No.
BD9874CP-V5E2

Mouser Part No
755-BD9874CP-V5E2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

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Datasheet

387In Stock

Cut Tape

$2.02

$1.49

$1.36

$1.21

$1.19

Reel

$1.19

Min.: 1
Mult.: 1

: 500

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

BD9A600MUV-E2
ROHM Semiconductor
1: $1.26
480In 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

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Datasheet

480In Stock

21,000On Order

Cut Tape

$1.26

$0.913

$0.826

$0.73

Reel

$0.609

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

BD9B301MUV-LBE2
ROHM Semiconductor
1: $3.47
379In 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

Learn More

Datasheet

379In Stock

Cut Tape

$3.47

$2.61

$2.38

$2.14

Reel

$1.76

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Switching Voltage Regulators 2.7-5.5v DC/DC Conv w/ 5A MOSFET

BD9B500MUV-E2
ROHM Semiconductor
1: $1.27
577In Stock

Mfr. Part No.
BD9B500MUV-E2

Mouser Part No
755-BD9B500MUV-E2

ROHM Semiconductor

Switching Voltage Regulators 2.7-5.5v DC/DC Conv w/ 5A MOSFET

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Datasheet

577In Stock

Cut Tape

$1.27

$0.926

$0.837

$0.74

Reel

$0.618

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: $3.54
100In Stock
250Expected 2026/11/17

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 2026/11/17

Cut Tape

$3.54

$2.67

$2.45

$2.21

Reel

$2.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

BD9E101FJ-LBGH2
ROHM Semiconductor
1: $3.54
39In 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

39In Stock

Cut Tape

$3.54

$2.67

$2.45

$2.21

Reel

$2.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Switching Voltage Regulators 7-36Vin,2.5A MOSFET DC/DC Converter

BD9E301EFJ-LBE2
ROHM Semiconductor
1: $4.52
307In Stock

Mfr. Part No.
BD9E301EFJ-LBE2

Mouser Part No
755-BD9E301EFJ-LBE2

ROHM Semiconductor

Switching Voltage Regulators 7-36Vin,2.5A MOSFET DC/DC Converter

Learn More

Datasheet

307In Stock

Cut Tape

$4.52

$3.43

$3.16

$2.86

View

Reel

$2.54

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: $1.16
1,338In 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

1,338In Stock

17,500On Order

Cut Tape

$1.16

$0.83

$0.747

$0.657

Reel

$0.527

View

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: $4.00
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

$4.00

$2.99

$2.73

$2.45

Reel

$2.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET

BD9859EFJ-E2
ROHM Semiconductor
1: $1.29
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

Learn More

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 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

$2.43

$1.80

$1.65

$1.48

Reel

$1.26

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 No.
BD9109FVM-TR

Mouser Part No
755-BD9109FVM-TR

NRND

ROHM Semiconductor

Switching Voltage Regulators 3.3V Output Voltage

Learn More

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
392In 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

Learn More

Datasheet

392In Stock

Cut Tape

$2.47

$1.84

$1.67

$1.50

Reel

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

BD9x Integrated MOSFET DC-DC Buck Converters

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BD9x Integrated MOSFET DC-DC Buck Converters

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