MPQ4571 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4571 Synchronous Step-Down Converters achieve up to 1A of continuous output current with peak current control for superior transient response. The wide 4.5V to 60V input voltage range accommodates step-down applications in automotive input environments, while the 2μA shutdown mode quiescent current is ideal for battery-powered applications. The MPQ4571 series offers 250mΩ/45mΩ internal power MOSFETs, 40µA quiescent current, built-in soft start, enable control, and power good indications. The high-duty cycle and low-dropout mode are supplied for automotive cold crank conditions. MPS MPQ4571 Synchronous Step-Down Converters are ideal for automotive infotainment, lamps, LEDs, and industrial power systems, and the QFN-12 (2.5mm x 3mm) package provides a compact solution.

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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
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Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
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Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
5In Stock
500Expected 10/30/2026
Cut Tape
₡2 185,95
₡1 655,08
₡1 519,76
₡1 374,03
₡1 306,37
Reel
₡1 259,53
MouseReel Available
Min.: 1
Mult.: 1
: 500
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz AEC-Q100 Reel, Cut Tape, MouseReel
Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
68In Stock
5 000Expected 2/25/2028
Cut Tape
₡2 061,04
₡1 556,19
₡1 426,08
₡1 290,75
View
Reel
₡1 061,75
Min.: 1
Mult.: 1
: 5 000
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz - 40 C + 150 C AEC-Q100 Reel, Cut Tape
Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
850Expected 11/30/2027
Cut Tape
₡2 487,82
₡2 050,63
₡1 764,38
₡1 608,24
₡1 530,17
Reel
₡1 405,26
MouseReel Available
Min.: 1
Mult.: 1
: 500
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz AEC-Q100 Reel, Cut Tape, MouseReel
Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
5 000Expected 8/4/2027
Cut Tape
₡2 201,57
₡1 660,28
₡1 524,96
₡1 379,23
View
Reel
₡1 191,87
Min.: 1
Mult.: 1
: 5 000
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz - 40 C + 150 C AEC-Q100 Reel, Cut Tape
Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
Non-Stocked Lead-Time 71 Weeks
Reel
₡1 134,61
Min.: 500
Mult.: 500
: 500
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz Reel
Monolithic Power Systems (MPS) Switching Voltage Regulators High-Efficiency, 1A, 60V Fully Integrated Synchronous Buck Converter
Datasheet
Non-Stocked Lead-Time 64 Weeks
Reel
₡947,25
Min.: 5 000
Mult.: 5 000
: 5 000
SMD/SMT QFN-12 Buck 1 A 1 Output 40 uA 2.2 MHz - 40 C + 150 C Reel