Voltage Regulators - Switching Regulators

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BD9S Series Automotive Buck DC-DC Converters

ROHM Semiconductor BD9S Automotive Buck DC-DC Converters provide high-reliability and low power consumption in a compact form factor with a temperature range of -40°C to +125°C. The BD9S DC-DC Converters feature current-mode control, ensuring fast response to load transients. A fixed 2.2MHz switching frequency prevents interference in the AM Band. This high frequency also allows the use of smaller external components, contributing to a higher degree of miniaturization and power savings. The BD9S Converters also include an enable function to adjust the startup time and a built-in output (Power Good function) indicating correct output voltage has been achieved. These AEC-Q100 qualified (Grade 1) devices support output currents from 0.6A to 4.0A for design flexibility.

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Part #

Switching Voltage Regulators Sync Buck DC/DC Conv 2A MOSFET; 2.7-5.5V

BD9S200MUF-CE2
ROHM Semiconductor
1: $3.35
7,795In Stock

Mfr. Part #
BD9S200MUF-CE2

Mouser Part #
755-BD9S200MUF-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Buck DC/DC Conv 2A MOSFET; 2.7-5.5V

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Datasheet

Product Comments

7,795In Stock

Cut Tape

$3.35

$2.48

$2.26

$2.03

Reel

$1.71

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

VQFNFV3030-EP-16

Buck

800 mV to 4.4 V

2 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 1.8V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S111NUX-CE2
ROHM Semiconductor
1: $2.74
2,935In Stock

Mfr. Part #
BD9S111NUX-CE2

Mouser Part #
755-BD9S111NUX-CE2

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 1.8V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

Product Comments

2,935In Stock

Cut Tape

$2.74

$2.03

$1.80

$1.64

View

Reel

$1.35

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

SMD/SMT

VSON-8

Buck

1.8 V

1 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Sync Buck DC/DC Conv 4A MOSFET; 2.7-5.5V

BD9S400MUF-CE2
ROHM Semiconductor
1: $4.51
2,620In Stock

Mfr. Part #
BD9S400MUF-CE2

Mouser Part #
755-BD9S400MUF-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Buck DC/DC Conv 4A MOSFET; 2.7-5.5V

Learn More

Datasheet

Product Comments

2,620In Stock

Cut Tape

$4.51

$3.38

$3.02

$2.79

View

Reel

$2.17

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

VQFNFV3030-EP-16

Buck

800 mV to 4.4 V

4 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S109NUX-CE2
ROHM Semiconductor
1: $1.04
3,600In Stock
New Product

Mfr. Part #
BD9S109NUX-CE2

Mouser Part #
755-BD9S109NUX-CE2

New Product

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

3,600In Stock

Cut Tape

$1.04

$0.808

Reel

$0.808

Min.: 1
Mult.: 1

Reel: 4,000

SMD/SMT

VSON008X2020-7

Buck

800 mV to 5.5 V

1 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 2.0A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S209NUX-CE2
ROHM Semiconductor
1: $2.12
3,040In Stock
New Product

Mfr. Part #
BD9S209NUX-CE2

Mouser Part #
755-BD9S209NUX-CE2

New Product

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 2.0A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

3,040In Stock

Cut Tape

$2.12

$1.55

$1.40

$1.24

View

Reel

$0.908

Min.: 1
Mult.: 1

Reel: 4,000

SMD/SMT

VSON008X2020-8

Buck

800 mV to 5.5 V

2 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 0.6A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S000NUX-CE2
ROHM Semiconductor
1: $2.12
3,082In Stock

Mfr. Part #
BD9S000NUX-CE2

Mouser Part #
755-BD9S000NUX-CE2

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 0.6A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

Product Comments

3,082In Stock

Cut Tape

$2.12

$1.55

$1.40

$1.24

View

Reel

$0.93

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

SMD/SMT

VSON-8

Buck

800 mV to 5.5 V

600 mA

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S100NUX-CE2
ROHM Semiconductor
1: $2.74
3,563In Stock

Mfr. Part #
BD9S100NUX-CE2

Mouser Part #
755-BD9S100NUX-CE2

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 0.8V ~VIN, 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

Product Comments

3,563In Stock

Cut Tape

$2.74

$2.03

$1.84

$1.64

View

Reel

$1.24

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

SMD/SMT

VSON-8

Buck

800 mV to 5.5 V

1 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Sync Buck DC/DC Conv 3A MOSFET; 2.7-5.5V

BD9S300MUF-CE2
ROHM Semiconductor
1: $3.94
3,965In Stock

Mfr. Part #
BD9S300MUF-CE2

Mouser Part #
755-BD9S300MUF-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Buck DC/DC Conv 3A MOSFET; 2.7-5.5V

Learn More

Datasheet

Product Comments

3,965In Stock

Cut Tape

$3.94

$2.93

$2.68

$2.40

Reel

$2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

VQFNFV3030-EP-16

Buck

800 mV to 4.4 V

3 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 1.2V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

BD9S110NUX-CE2
ROHM Semiconductor
4,000: $1.21
Non-Stocked Lead-Time 13 Weeks

Mfr. Part #
BD9S110NUX-CE2

Mouser Part #
755-BD9S110NUX-CE2

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V~5.5V Input, 1.2V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40?~+125?

Learn More

Datasheet

Product Comments

Non-Stocked Lead-Time 13 Weeks

Reel

$1.21

Min.: 4,000
Mult.: 4,000

Reel: 4,000

SMD/SMT

VSON-8

Buck

1.2 V

1 A

1 Output

2.2 MHz

- 40 C

+ 125 C

AEC-Q100

Reel

BD9S Series Automotive Buck DC-DC Converters

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