MPQ4571GQB-AEC1-P

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Monolithic Power Systems Inc.

DC-DC SWITCHING STEP-DOWN REGULATOR, ADJUSTABLE, 4.5V TO 60V IN, 1V TO 54V OUT, 1A OUT, QFN-12

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MPQ4571GQB-AEC1-P

Active

Monolithic Power Systems Inc.

DC-DC SWITCHING STEP-DOWN REGULATOR, ADJUSTABLE, 4.5V TO 60V IN, 1V TO 54V OUT, 1A OUT, QFN-12

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Description Specifications Series Pricing CAD Documents

Description

General part information

MPQ4571 Series

MPQ4571 is a fully integrated, fixed frequency, synchronous step-down converter. It can achieve up to 1A of continuous output current with peak current control for excellent transient response. The wide 4.5V to 60V input voltage range accommodates a variety of step down applications in an automotive input environment. The device’s 2μA shutdown mode quiescent current makes it ideal in battery-powered applications. The MPQ4571 integrates internal high-side and low-side power MOSFETs for high efficiency without an external schottky diode. It employs advanced asynchronous modulation (AAM) to achieve high efficiency during light-load conditions by scaling down the frequency to reduce switching and gate driver losses. Standard features include built-in soft start, enable control and power good indication. It is available in a QFN-12 (2.5mmx3mm) package. Typical applications include automotive infotainment, automotive lamps and LEDs, automotive motor control and industrial power systems.

Technical Specifications

Parameters and characteristics for this part

Specification	MPQ4571GQB-AEC1-P

Current - Output	1 A
Frequency - Switching (Max)	2.2 MHz
Frequency - Switching (Min)	400 kHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	12-VFQFN
Package Length	2.5 mm
Package Name	12-QFN
Package Width	3 mm
Qualification	AEC-Q100
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	60 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	54 V
Voltage - Output (Min/Fixed)	1 V

MPQ4571 Series

Part	Synchronous Rectifier	Voltage - Input (Min)	Operating Temperature (Min)	Operating Temperature (Max)	Output Type	Current - Output	Voltage - Output (Max)	Frequency - Switching (Max)	Frequency - Switching (Min)	Qualification	Topology	Output Configuration	Number of Outputs	Grade	Voltage - Output (Min/Fixed)	Function	Package / Case	Package Name	Package Width	Package Length	Voltage - Input (Max)	Mounting Type
Monolithic Power Systems Inc. MPQ4571GQB-AEC1-Z	Yes	4.5 V	-40 °C	150 °C	Adjustable	1 A	54 V	2.2 MHz	400 kHz	AEC-Q100	Buck	Positive	1	Automotive	1 V	Step-Down	12-VFQFN	12-QFN	3 mm	2.5 mm	60 V	Surface Mount
Monolithic Power Systems Inc. MPQ4571GQBE-AEC1-Z	Yes	4.5 V	-40 °C	150 °C	Adjustable	1 A	54 V	2.2 MHz	400 kHz	AEC-Q100	Buck	Positive	1	Automotive	1 V	Step-Down	12-VFQFN	12-QFN	3 mm	2.5 mm	60 V	Surface Mount Wettable Flank
Monolithic Power Systems Inc. MPQ4571GQB-Z	Yes	4.5 V	-40 °C	150 °C	Adjustable	1 A	54 V	2.2 MHz	400 kHz	AEC-Q100	Buck	Positive	1	Automotive	1 V	Step-Down	12-VFQFN	12-QFN	3 mm	2.5 mm	60 V	Surface Mount
Monolithic Power Systems Inc. MPQ4571GQB-AEC1-P	Yes	4.5 V	-40 °C	150 °C	Adjustable	1 A	54 V	2.2 MHz	400 kHz	AEC-Q100	Buck	Positive	1	Automotive	1 V	Step-Down	12-VFQFN	12-QFN	3 mm	2.5 mm	60 V	Surface Mount
Monolithic Power Systems Inc. MPQ4571GQBE-AEC1-P	Yes	4.5 V	-40 °C	150 °C	Adjustable	1 A	54 V	2.2 MHz	400 kHz	AEC-Q100	Buck	Positive	1	Automotive	1 V	Step-Down	12-VFQFN	12-QFN	3 mm	2.5 mm	60 V	Surface Mount Wettable Flank

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

Technical Data Sheet EN