Voltage Regulators - Switching Regulators

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MPQ9840 Step-Down Converters

Monolithic Power Systems (MPS) MPQ9840 Step-Down Converters are high-frequency, step-down switch-mode synchronous converters with built-in power MOSFETs. These converters achieve 3.5A of continuous output current with excellent load and line regulation over 3.3V to 36V input supply range. The MPQ9840 step-down converters feature internal 125mΩ high-side and 55mΩ low-side MOSFET, and hiccup Over-Current Protection (OCP). These converters also feature a 2μA low shutdown supply current, 14μA no-load quiescent current, and 350kHz to 2.5MHz programmable switching frequency.

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Part #

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.07
4,050In Stock

Mfr. Part #
MPQ9840GLE-AEC1-Z

Mouser Part #
946-MPQ9840GLE-AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

4,050In Stock

Cut Tape

$5.07

$3.82

$3.50

$3.15

View

Reel

$2.66

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-16

Buck

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-5-AEC1-P
Monolithic Power Systems (MPS)
1: $5.57
1,203In Stock

Mfr. Part #
MPQ9840GLE-5-AEC1-P

Mouser Part #
946-MPQ9840GLE5AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

1,203In Stock

Cut Tape

$5.57

$4.33

$3.97

$3.56

$3.37

Reel

$3.30

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-16

Buck

5 V

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-AEC1-P
Monolithic Power Systems (MPS)
1: $5.57
830In Stock

Mfr. Part #
MPQ9840GLE-AEC1-P

Mouser Part #
946-MPQ9840GLE-AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

830In Stock

Cut Tape

$5.57

$4.22

$3.87

$3.50

Reel

$3.05

View

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-16

Buck

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-33-AEC1-P
Monolithic Power Systems (MPS)
1: $5.82
470In Stock

Mfr. Part #
MPQ9840GLE-33-AEC1-P

Mouser Part #
946-MPQ9840GL33AEC1P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

470In Stock

Cut Tape

$5.82

$4.33

$3.97

$3.56

$3.37

Reel

$3.30

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-16

Buck

3.3 V

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-33-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.17
1,154In Stock

Mfr. Part #
MPQ9840GLE-33-AEC1-Z

Mouser Part #
946-MPQ9840GL33AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

1,154In Stock

Cut Tape

$5.17

$3.86

$3.54

$3.18

View

Reel

$2.68

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-16

Buck

3.3 V

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GL-P
Monolithic Power Systems (MPS)
1: $5.07
407In Stock

Mfr. Part #
MPQ9840GL-P

Mouser Part #
946-MPQ9840GL-P

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

407In Stock

Cut Tape

$5.07

$3.82

$3.50

$3.15

Reel

$2.88

View

Min.: 1
Mult.: 1

: 500

SMD/SMT

QFN-16

Buck

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

MPQ9840

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GLE-5-AEC1-Z
Monolithic Power Systems (MPS)
1: $5.17
560In Stock
5,000Expected 2026-11-30

Mfr. Part #
MPQ9840GLE-5-AEC1-Z

Mouser Part #
946-MPQ9840GLE5AEC1Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

560In Stock

5,000Expected 2026-11-30

Cut Tape

$5.17

$3.86

$3.54

$3.18

View

Reel

$2.69

Min.: 1
Mult.: 1

: 5,000

SMD/SMT

QFN-16

Buck

5 V

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

AEC-Q100

MPQ9840-AEC1

Reel, Cut Tape

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

MPQ9840GL-Z
Monolithic Power Systems (MPS)
5,000: $2.36
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
MPQ9840GL-Z

Mouser Part #
946-MPQ9840GL-Z

Monolithic Power Systems (MPS)

Switching Voltage Regulators 36V, 3.5A, Low IQ, Synchronous Step-Down Converter

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.36

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

: 5,000

SMD/SMT

QFN-16

Buck

3.5 A

1 Output

14 uA

400 kHz to 2.75 MHz

- 40 C

+ 125 C

MPQ9840

Reel

MPQ9840 Step-Down Converters

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