Voltage Regulators - Switching Regulators

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MPQ442 High-Efficiency Step-Down Converters

Monolithic Power Systems (MPS) MPQ442 High-Efficiency Step Down Converters are synchronous, rectified, step-down converters with built-in power MOSFETs. These converters use synchronous mode operation to achieve higher efficiency over the output current load range. The current-mode operation provides a fast transient response and eases loop stabilization. Full protection features include overcurrent protection (OCP) and thermal shutdown. These devices require a minimal number of readily available, standard, external components. MPS MPQ442 High-Efficiency Step Down Converters are offered in both TSOT23-8 and QFN-8 packages.

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Part #

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter

MPQ4423HGQ-Z
Monolithic Power Systems (MPS)
1: $5.07
2,906In Stock

Mfr. Part #
MPQ4423HGQ-Z

Mouser Part #
946-MPQ4423HGQ-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter

Learn More

Datasheet

2,906In Stock

Cut Tape

$5.07

$3.82

$3.50

$3.15

View

Reel

$2.66

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

MPQ4423H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 3A HE 36V Sync Step Down Converter

MPQ4423AGQ-AEC1-P
Monolithic Power Systems (MPS)
1: $8.87
357In Stock

Mfr. Part #
MPQ4423AGQ-AEC1-P

Mouser Part #
946-MPQ4423AGQ-AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 3A HE 36V Sync Step Down Converter

Learn More

Datasheet

357In Stock

Cut Tape

$8.87

$6.42

$5.76

$5.46

Reel

$3.25

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423A

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter with AEC1 qualified

MPQ4423HGQ-AEC1-P
Monolithic Power Systems (MPS)
1: $8.91
360In Stock

Mfr. Part #
MPQ4423HGQ-AEC1-P

Mouser Part #
946-MPQ4423HGQ-AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

360In Stock

Cut Tape

$8.91

Reel

$3.25

$3.12

$3.04

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Automotive Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter with AEC1 qualified

MPQ4420HGJ-AEC1-P
Monolithic Power Systems (MPS)
1: $5.57
726In Stock

Mfr. Part #
MPQ4420HGJ-AEC1-P

Mouser Part #
946-MPQ4420HGJ-AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

726In Stock

Cut Tape

$5.57

$4.22

$3.87

$3.50

Reel

$3.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4420H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Automotive Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter with AEC1 qualified

MPQ4420HGJ-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.07
3,485In Stock

Mfr. Part #
MPQ4420HGJ-AEC1-Z

Mouser Part #
946-MPQ4420HGJ-AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

3,485In Stock

Cut Tape

$5.07

$3.82

$3.50

$3.15

Reel

$2.76

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4420H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Industrial Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter

MPQ4420HGJ-P
Monolithic Power Systems (MPS)
1: $5.17
1,603In Stock

Mfr. Part #
MPQ4420HGJ-P

Mouser Part #
946-MPQ4420HGJ-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter

Learn More

Datasheet

1,603In Stock

Cut Tape

$5.17

$3.90

$3.57

$3.23

Reel

$2.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

MPQ4420H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

MPQ4420AGJ-P
Monolithic Power Systems (MPS)
1: $5.17
472In Stock

Mfr. Part #
MPQ4420AGJ-P

Mouser Part #
946-MPQ4420AGJ-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

Learn More

Datasheet

472In Stock

Cut Tape

$5.17

$3.90

$3.57

$3.23

Reel

$2.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

MPQ4420A

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Automotive Grade,Hig h Efficiency 2A,36V

MPQ4420GJ-AEC1-P
Monolithic Power Systems (MPS)
1: $5.20
30In Stock

Mfr. Part #
MPQ4420GJ-AEC1-P

Mouser Part #
946-MPQ4420GJ-AEC1-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,Hig h Efficiency 2A,36V

Learn More

Datasheet

30In Stock

Cut Tape

$5.20

$3.89

$3.57

$3.21

$3.04

Reel

$2.91

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TSOT-23-8

Buck

800 mV to 27 V

2 A

1 Output

500 uA

410 kHz

- 40 C

+ 150 C

AEC-Q100

MPQ4420-AEC1

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Automotive Grade,Hig h Efficiency 2A,36V

MPQ4420GJ-AEC1-Z
Monolithic Power Systems (MPS)
1: $4.65
58In Stock
3,000Expected 2026-06-22

Mfr. Part #
MPQ4420GJ-AEC1-Z

Mouser Part #
946-MPQ4420GJ-AEC1-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,Hig h Efficiency 2A,36V

Learn More

Datasheet

58In Stock

3,000Expected 2026-06-22

Cut Tape

$4.65

$3.47

$3.18

$2.85

View

Reel

$2.38

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

TSOT-23-8

Buck

800 mV to 27 V

2 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4420-AEC1

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter

MPQ4423HGQ-P
Monolithic Power Systems (MPS)
1: $5.57
116In Stock

Mfr. Part #
MPQ4423HGQ-P

Mouser Part #
946-MPQ4423HGQ-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter

Learn More

Datasheet

116In Stock

Cut Tape

$5.57

$4.22

$3.87

$3.50

Reel

$3.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

MPQ4423H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

MPQ4420AGJ-AEC1-P
Monolithic Power Systems (MPS)
1: $6.78
477Expected 2027-04-13

Mfr. Part #
MPQ4420AGJ-AEC1-P

Mouser Part #
946-MPQ4420AGJ-AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

Learn More

Datasheet

477Expected 2027-04-13

Cut Tape

$6.78

$4.74

$4.16

$3.77

$3.57

Reel

$3.21

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4420A

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

MPQ4420AGJ-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.07
Non-Stocked Lead-Time 44 Weeks

Mfr. Part #
MPQ4420AGJ-AEC1-Z

Mouser Part #
946-MPQ4420AGJ-AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 44 Weeks

Cut Tape

$5.07

$3.82

$3.50

$3.15

View

Reel

$2.69

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4420A

Reel, Cut Tape

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

MPQ4420AGJ-Z
Monolithic Power Systems (MPS)
3,000: $2.46
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
MPQ4420AGJ-Z

Mouser Part #
946-MPQ4420AGJ-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 2A HE 36V Sync Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.46

Min.: 3,000
Mult.: 3,000

: 3,000

SMD/SMT

TSOT-23-8

Buck

800 mV to 32.4 V

2 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

MPQ4420A

Reel

Switching Voltage Regulators Industrial Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter

MPQ4420HGJ-Z
Monolithic Power Systems (MPS)
1: $4.67
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
MPQ4420HGJ-Z

Mouser Part #
946-MPQ4420HGJ-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 2A,true 36V,Synchronous Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

Cut Tape

$4.67

$3.50

$3.21

$2.89

View

Reel

$2.46

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

TSOT-23-8

Buck

MPQ4420H

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 3A HE 36V Sync Step Down Converter

MPQ4423AGQ-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.17
Non-Stocked Lead-Time 44 Weeks

Mfr. Part #
MPQ4423AGQ-AEC1-Z

Mouser Part #
946-MPQ4423AGQ-AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 3A HE 36V Sync Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 44 Weeks

Cut Tape

$5.17

$3.90

$3.57

$3.23

View

Reel

$2.72

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

600 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423A

Reel, Cut Tape

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter with AEC1 qualified

MPQ4423GQ-AEC1-P
Monolithic Power Systems (MPS)
500: $3.17
Non-Stocked Lead-Time 50 Weeks

Mfr. Part #
MPQ4423GQ-AEC1-P

Mouser Part #
946-MPQ4423GQ-AEC1-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

Non-Stocked Lead-Time 50 Weeks

Reel

$3.17

Min.: 500
Mult.: 500

: 500

SMD/SMT

QFN-8

Buck

800 mV to 27 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423-AEC1

Reel

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter with AEC1 qualified

MPQ4423GQ-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $2.62
Non-Stocked Lead-Time 44 Weeks

Mfr. Part #
MPQ4423GQ-AEC1-Z

Mouser Part #
946-MPQ4423GQ-AEC1-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

Non-Stocked Lead-Time 44 Weeks

Reel

$2.62

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

: 5,000

SMD/SMT

QFN-8

Buck

800 mV to 27 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423-AEC1

Reel

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter

MPQ4423GQ-P
Monolithic Power Systems (MPS)
1: $4.97
Non-Stocked Lead-Time 44 Weeks

Mfr. Part #
MPQ4423GQ-P

Mouser Part #
946-MPQ4423GQ-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 44 Weeks

Cut Tape

$4.97

$3.74

$3.43

$3.10

$2.92

Reel

$2.69

MouseReel Available

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-8

Buck

800 mV to 27 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

MPQ4423

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter

MPQ4423GQ-Z
Monolithic Power Systems (MPS)
5,000: $2.33
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
MPQ4423GQ-Z

Mouser Part #
946-MPQ4423GQ-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Industrial Grade,High Efficiency 3A,36V max,Synchronous Step Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.33

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

: 5,000

SMD/SMT

QFN-8

Buck

800 mV to 27 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

MPQ4423

Reel

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter with AEC1 qualified

MPQ4423HGQ-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.17
Non-Stocked Lead-Time 44 Weeks

Mfr. Part #
MPQ4423HGQ-AEC1-Z

Mouser Part #
946-MPQ4423HGQ-AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators Automotive Grade,High Efficiency 3A,true 36V,Synchronous Step Down Converter with AEC1 qualified

Learn More

Datasheet

Non-Stocked Lead-Time 44 Weeks

Cut Tape

$5.17

$3.90

$3.57

$3.23

View

Reel

$2.74

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-8

Buck

800 mV to 32.4 V

3 A

1 Output

500 uA

410 kHz

- 40 C

+ 125 C

AEC-Q100

MPQ4423H

Reel, Cut Tape, MouseReel

MPQ442 High-Efficiency Step-Down Converters

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