Voltage Regulators - Switching Regulators

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MPQ4334 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4334 Synchronous Step-Down Converters are configurable‑frequency step‑down regulators capable of operating from 200kHz to 2.5MHz. The MPS MPQ4334 integrates high‑side and low‑side MOSFETs to deliver 0.5A to 4A of efficient output current using peak‑current‑mode control, ensuring fast transient response and stable regulation. These components are available in QFN‑12 (2mm × 3mm), QFN‑12 (3mm × 4mm), and QFN‑14 (2.5mm × 3.5mm) package options and are fully AEC‑Q100 qualified for automotive use.

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Part #

Switching Voltage Regulators

MPQ4334GDE-4000-AEC1-P
Monolithic Power Systems (MPS)
1: $4.08
500Expected 2026-09-02
New Product

Mfr. Part #
MPQ4334GDE-4000-AEC1-P

Mouser Part #
946-4334GDE4000AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

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Datasheet

500Expected 2026-09-02

$4.08

$3.05

$2.79

$2.51

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-12

Buck

4 A

1 Output

20 uA

200 kHz to 2.5 MHz

- 40 C

+ 150 C

Switching Voltage Regulators

MPQ4334GLE-4001-AEC1-P
Monolithic Power Systems (MPS)
1: $4.08
500Expected 2026-09-02
New Product

Mfr. Part #
MPQ4334GLE-4001-AEC1-P

Mouser Part #
946-4334GLE4001AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

500Expected 2026-09-02

$4.08

$3.05

$2.79

$2.51

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-12

Buck

4 A

1 Output

20 uA

200 kHz to 2.5 MHz

- 40 C

+ 150 C

Switching Voltage Regulators

MPQ4334GRHE-1002-AEC1-P
Monolithic Power Systems (MPS)
1: $3.56
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GRHE-1002-AEC1-P

Mouser Part #
946-34GRHE1002AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

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Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.56

$2.65

$2.42

$2.16

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GRHE-1002-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.51
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GRHE-1002-AEC1-Z

Mouser Part #
946-34GRHE1002AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

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Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.51

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GRHE-4006-AEC1-P
Monolithic Power Systems (MPS)
500: $2.28
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GRHE-4006-AEC1-P

Mouser Part #
946-34GRHE4006AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

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Datasheet

Non-Stocked Lead-Time 71 Weeks

$2.28

$2.19

Min.: 500
Mult.: 500

Switching Voltage Regulators

MPQ4334GRHE-4006-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.81
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GRHE-4006-AEC1-Z

Mouser Part #
946-34GRHE4006AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.81

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-2000-AEC1-P
Monolithic Power Systems (MPS)
1: $3.70
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2000-AEC1-P

Mouser Part #
946-4334GDE2000AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.70

$2.75

$2.52

$2.26

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-2000-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.60
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2000-AEC1-Z

Mouser Part #
946-4334GDE2000AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.60

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-2001-AEC1-P
Monolithic Power Systems (MPS)
1: $3.70
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2001-AEC1-P

Mouser Part #
946-4334GDE2001AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.70

$2.75

$2.52

$2.26

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-2001-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.60
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2001-AEC1-Z

Mouser Part #
946-4334GDE2001AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.60

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-2006-AEC1-P
Monolithic Power Systems (MPS)
1: $3.70
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2006-AEC1-P

Mouser Part #
946-4334GDE2006AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.70

$2.75

$2.52

$2.26

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-2006-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.60
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-2006-AEC1-Z

Mouser Part #
946-4334GDE2006AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.60

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-3000-AEC1-P
Monolithic Power Systems (MPS)
1: $3.83
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3000-AEC1-P

Mouser Part #
946-4334GDE3000AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.83

$2.87

$2.62

$2.35

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-3000-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.68
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3000-AEC1-Z

Mouser Part #
946-4334GDE3000AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.68

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-3001-AEC1-P
Monolithic Power Systems (MPS)
1: $3.83
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3001-AEC1-P

Mouser Part #
946-4334GDE3001AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.83

$2.87

$2.62

$2.35

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-3001-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.68
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3001-AEC1-Z

Mouser Part #
946-4334GDE3001AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.68

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-3006-AEC1-P
Monolithic Power Systems (MPS)
1: $3.83
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3006-AEC1-P

Mouser Part #
946-4334GDE3006AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.83

$2.87

$2.62

$2.35

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GDE-3006-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.67
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-3006-AEC1-Z

Mouser Part #
946-4334GDE3006AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.67

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GDE-4000-AEC1-Z
Monolithic Power Systems (MPS)
1: $3.56
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GDE-4000-AEC1-Z

Mouser Part #
946-4334GDE4000AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$3.56

$2.65

$2.42

$2.16

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GLE-1505-AEC1-P
Monolithic Power Systems (MPS)
1: $3.56
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GLE-1505-AEC1-P

Mouser Part #
946-4334GLE1505AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.56

$2.65

$2.42

$2.16

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GLE-1505-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.51
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GLE-1505-AEC1-Z

Mouser Part #
946-4334GLE1505AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.51

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GLE-2000-AEC1-P
Monolithic Power Systems (MPS)
1: $3.70
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GLE-2000-AEC1-P

Mouser Part #
946-4334GLE2000AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.70

$2.75

$2.52

$2.26

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GLE-2000-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.60
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GLE-2000-AEC1-Z

Mouser Part #
946-4334GLE2000AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.60

Min.: 5,000
Mult.: 5,000

Switching Voltage Regulators

MPQ4334GLE-2001-AEC1-P
Monolithic Power Systems (MPS)
1: $3.70
Non-Stocked Lead-Time 71 Weeks
New Product

Mfr. Part #
MPQ4334GLE-2001-AEC1-P

Mouser Part #
946-4334GLE2001AEC1P

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 71 Weeks

$3.70

$2.75

$2.52

$2.26

View

Min.: 1
Mult.: 1

Switching Voltage Regulators

MPQ4334GLE-2001-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $1.60
Non-Stocked Lead-Time 64 Weeks
New Product

Mfr. Part #
MPQ4334GLE-2001-AEC1-Z

Mouser Part #
946-4334GLE2001AEC1Z

New Product

Monolithic Power Systems (MPS)

Switching Voltage Regulators

Learn More

Datasheet

Non-Stocked Lead-Time 64 Weeks

$1.60

Min.: 5,000
Mult.: 5,000

MPQ4334 Synchronous Step-Down Converters

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