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 (IDR) Filter the results in the table by unit price based on your quantity.
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Output Current
Number of Outputs
Quiescent Current
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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 30/10/2026
Cut Tape
Rp77.603,58
Rp64.761,38
Rp55.404,92
Rp50.084,58
Rp47.699,60
Reel
Rp44.580,78
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 11/10/2027
Cut Tape
Rp72.650,16
Rp54.854,54
Rp50.268,04
Rp45.498,08
View
Reel
Rp37.425,84
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
5.000Expected 04/08/2027
Cut Tape
Rp77.603,58
Rp58.523,74
Rp53.753,78
Rp48.616,90
View
Reel
Rp42.012,34
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
350Expected 06/11/2026
Cut Tape
Rp85.675,82
Rp70.265,18
Rp60.174,88
Rp54.671,08
Rp51.919,18
Reel
Rp48.433,44
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
Non-Stocked Lead-Time 71 Weeks
Reel
Rp39.994,28
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
Rp33.389,72
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