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Automotive Switching Regulators

ROHM Semiconductor Automotive Switching Regulators are AEC-Q100 qualified power management ICs. These ROHM Semiconductor switching regulators consist of regulators with or without integrated FET, buck converters (both synchronous and nonsynchronous), and buck-boost converters. Automobile switching regulators are available from single-channel to multi-channel system power supply configurations for broad compatibility. These switching regulators come in various packages with built-in circuit protection functions to match the requirements of the designers.

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Types of Semiconductors

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Part #

Switching Voltage Regulators 1ch Buck Converter 4.5V-42V; 3.5A FET

BD9G401EFJ-ME2
ROHM Semiconductor
1: $6.28
1,009In Stock
NRND

Mfr. Part No.
BD9G401EFJ-ME2

Mouser Part No
755-BD9G401EFJ-ME2

NRND

ROHM Semiconductor

Switching Voltage Regulators 1ch Buck Converter 4.5V-42V; 3.5A FET

Datasheet

Product Comments

1,009In Stock

Cut Tape

$6.28

$4.77

$4.39

$3.98

View

Reel

$3.43

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators Quick Buck Booster™, Nano Pulse Control™, 2.7 V to 36 V Input, 2 A Single Buck DC/DC Converter with Boost Function

BD8P250MUF-CE2
ROHM Semiconductor
1: $5.99
230In Stock
5,000Expected 8/9/2026

Mfr. Part No.
BD8P250MUF-CE2

Mouser Part No
755-BD8P250MUF-CE2

ROHM Semiconductor

Switching Voltage Regulators Quick Buck Booster™, Nano Pulse Control™, 2.7 V to 36 V Input, 2 A Single Buck DC/DC Converter with Boost Function

Datasheet

Product Comments

230In Stock

5,000Expected 8/9/2026

Cut Tape

$5.99

$4.55

$4.18

$3.78

View

Reel

$3.28

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

BD90521EFV-CE2
ROHM Semiconductor
1: $4.17
2,497In Stock

Mfr. Part No.
BD90521EFV-CE2

Mouser Part No
755-BD90521EFV-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

Datasheet

Product Comments

2,497In Stock

Cut Tape

$4.17

$3.13

$2.86

$2.57

Reel

$2.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

BD90541MUV-CE2
ROHM Semiconductor
1: $6.10
381In Stock
2,500Expected 21/8/2026

Mfr. Part No.
BD90541MUV-CE2

Mouser Part No
755-BD90541MUV-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

Datasheet

Product Comments

381In Stock

2,500Expected 21/8/2026

Cut Tape

$6.10

$4.63

$4.27

$3.85

View

Reel

$3.34

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Switching Voltage Regulators IC Pwr Swtch Reg Controller

BD9015KV-ME2
ROHM Semiconductor
1,500: $3.11
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
BD9015KV-ME2

Mouser Part No
755-BD9015KV-ME2

ROHM Semiconductor

Switching Voltage Regulators IC Pwr Swtch Reg Controller

Datasheet

Product Comments

Non-Stocked Lead-Time 12 Weeks

Reel

$3.11

$3.07

Min.: 1,500
Mult.: 1,500

: 1,500

Power Management Specialised - PMIC Sys Reg for Auto 4-45V; HTSSOP-B24

BD39012EFV-CE2
ROHM Semiconductor
2,000: $2.97
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
BD39012EFV-CE2

Mouser Part No
755-BD39012EFV-CE2

ROHM Semiconductor

Power Management Specialised - PMIC Sys Reg for Auto 4-45V; HTSSOP-B24

Datasheet

Product Comments

Non-Stocked Lead-Time 15 Weeks

Reel

$2.97

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

: 2,000

Power Management Specialised - PMIC Multi-Channel PS IC for Car Audio Sys

BD49101AEFS-ME2
ROHM Semiconductor
1,500: $5.10
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
BD49101AEFS-ME2

Mouser Part No
755-BD49101AEFS-ME2

ROHM Semiconductor

Power Management Specialised - PMIC Multi-Channel PS IC for Car Audio Sys

Datasheet

Product Comments

Non-Stocked Lead-Time 14 Weeks

Reel

$5.10

$4.93

Min.: 1,500
Mult.: 1,500

: 1,500

Power Management Specialised - PMIC Mult Pwr Supply IC 5.5-25V; HTSSOP-A44R

BD49101ARFS-ME2
ROHM Semiconductor
1,500: $5.21
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
BD49101ARFS-ME2

Mouser Part No
755-BD49101ARFS-ME2

ROHM Semiconductor

Power Management Specialised - PMIC Mult Pwr Supply IC 5.5-25V; HTSSOP-A44R

Datasheet

Product Comments

Non-Stocked Lead-Time 13 Weeks

Reel

$5.21

Min.: 1,500
Mult.: 1,500

: 1,500

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

BD90521MUV-CE2
ROHM Semiconductor
2,500: $2.35
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
BD90521MUV-CE2

Mouser Part No
755-BD90521MUV-CE2

ROHM Semiconductor

Switching Voltage Regulators Sync Step-Dwn Cnvrtr 2.6-5.5V; 0.3-2.4MHz

Datasheet

Product Comments

Non-Stocked Lead-Time 16 Weeks

Reel

$2.35

$2.32

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

: 2,500

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V5.5V Input, 1.2V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40+125

BD9S110NUX-CE2
ROHM Semiconductor
4,000: $1.30
Non-Stocked Lead-Time 13 Weeks

Mfr. Part No.
BD9S110NUX-CE2

Mouser Part No
755-BD9S110NUX-CE2

ROHM Semiconductor

Switching Voltage Regulators IC, PMIC, Buck DC/DC Converter, 2.7V5.5V Input, 1.2V(Typ), 1.0A Output, 2.2MHz Op Frequency, -40+125

Datasheet

Product Comments

Non-Stocked Lead-Time 13 Weeks

Reel

$1.30

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

: 4,000