Voltage Regulators - Switching Regulators

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MPQ4323 42V Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4323 42V Synchronous Step-Down Converters are frequency-configurable (350kHz to 2.5MHz) step-down switching regulators. These devices feature integrated internal high-side and low-side power MOSFETs. The MPQ4323 regulators provide 3A of highly efficient output current with peak current mode control. The wide 3.3V to 36V input voltage range and 42V load dump tolerance accommodate a variety of step-down applications in automotive input environments. The MPQ4323 synchronous step-down converters offer a 1μA shutdown current (ISD) for battery-powered applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Qualification	Series	Packaging
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-AEC1-P Monolithic Power Systems (MPS) 1: € 2,60 911In Stock	Mfr. Part No. MPQ4323GDE-AEC1-P Mouser Part No 946-MPQ4323GDE-AEC1P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	911In Stock	Cut Tape € 2,60 € 1,94 € 1,78 € 1,60 Reel € 1,39 View € 1,51 € 1,36 € 1,34	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A MPQ4323CGRHE-AEC1-P Monolithic Power Systems (MPS) 1: € 2,68 480In Stock	Mfr. Part No. MPQ4323CGRHE-AEC1-P Mouser Part No 946-PQ4323CGRHEAEC1P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	480In Stock	Cut Tape € 2,68 € 2,01 € 1,84 € 1,66 Reel € 1,51 View € 1,57 € 1,44 € 1,39 € 1,37	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-14	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, MPQ4323MGQCE-AEC1-P Monolithic Power Systems (MPS) 1: € 3,08 485In Stock	Mfr. Part No. MPQ4323MGQCE-AEC1-P Mouser Part No 946-PQ4323MGQCEAEC1P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	485In Stock	Cut Tape € 3,08 € 2,30 € 2,10 € 1,88 Reel € 1,75 View € 1,78 € 1,74	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-33-AEC1-P Monolithic Power Systems (MPS) 1: € 2,60 858In Stock	Mfr. Part No. MPQ4323GDE-33-AEC1-P Mouser Part No 946-MPQ4323GDE-33P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact	Datasheet	858In Stock	Cut Tape € 2,60 € 1,95 € 1,78 € 1,61 Reel € 1,46 View € 1,52 € 1,38 € 1,34 € 1,32	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	3.3 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C		MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-38-AEC1-P Monolithic Power Systems (MPS) 1: € 2,60 490In Stock	Mfr. Part No. MPQ4323GDE-38-AEC1-P Mouser Part No 946-MPQ4323GDE-38P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact	Datasheet	490In Stock	Cut Tape € 2,60 € 1,95 € 1,78 € 1,61 Reel € 1,46 View € 1,52 € 1,38 € 1,34 € 1,32	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	3.8 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C		MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A MPQ4323CGDE-AEC1-P Monolithic Power Systems (MPS) 1: € 2,69 170In Stock 500Expected 26/10/2026	Mfr. Part No. MPQ4323CGDE-AEC1-P Mouser Part No 946-MPQ4323CGDEAEC1P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	170In Stock 500Expected 26/10/2026	Cut Tape € 2,69 € 2,01 € 1,84 € 1,65 Reel € 1,51 View € 1,57 € 1,44 € 1,40 € 1,38	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-AEC1-Z Monolithic Power Systems (MPS) 1: € 2,37 103In Stock 5 000Expected 04/01/2028	Mfr. Part No. MPQ4323GDE-AEC1-Z Mouser Part No 946-MPQ4323GDE-AEC1Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	103In Stock 5 000Expected 04/01/2028	Cut Tape € 2,37 € 1,76 € 1,61 € 1,44 View Reel € 1,17 € 1,36 € 1,32 € 1,27 € 1,25 € 1,17	Min.: 1 Mult.: 1 : 5 000	SMD/SMT	QFN-12	Buck	800 mV to 32.4 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A MPQ4323CGDE-AEC1-Z Monolithic Power Systems (MPS) 1: € 2,37 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323CGDE-AEC1-Z Mouser Part No 946-MPQ4323CGDEAEC1Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Cut Tape € 2,37 € 1,76 € 1,61 € 1,44 View Reel € 1,18 € 1,36 € 1,32 € 1,26 € 1,25 € 1,18	Min.: 1 Mult.: 1 : 5 000	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-33-AEC1-Z Monolithic Power Systems (MPS) 5 000: € 1,19 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323GDE-33-AEC1-Z Mouser Part No 946-MPQ4323GDE-33Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel € 1,19	Min.: 5 000 Mult.: 5 000 : 5 000	SMD/SMT	QFN-12	Buck	3.3 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C		MPQ4323	Reel
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact MPQ4323GDE-38-AEC1-Z Monolithic Power Systems (MPS) 5 000: € 1,30 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323GDE-38-AEC1-Z Mouser Part No 946-MPQ4323GDE-38Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel € 1,30	Min.: 5 000 Mult.: 5 000 : 5 000	SMD/SMT	QFN-12	Buck	3.8 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C		MPQ4323	Reel
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, MPQ4323GLE-AEC1-P Monolithic Power Systems (MPS) 500: € 1,45 Non-Stocked	Mfr. Part No. MPQ4323GLE-AEC1-P Mouser Part No 946-MPQ4323GLEAEC1P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	Non-Stocked	Reel € 1,45	Min.: 500 Mult.: 500 : 500	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, MPQ4323GLE-AEC1-Z Monolithic Power Systems (MPS) 1: € 2,38 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323GLE-AEC1-Z Mouser Part No 946-MPQ4323GLEAEC1Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Cut Tape € 2,38 € 1,77 € 1,63 € 1,45 View Reel € 1,22 € 1,38 € 1,35 € 1,28 € 1,24 € 1,22 MouseReel Available	Min.: 1 Mult.: 1 : 5 000	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	20 uA	2.2 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 42V Load Dump Tolerant, 3A MPQ4323CGRHE-AEC1-Z Monolithic Power Systems (MPS) 5 000: € 1,25 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323CGRHE-AEC1-Z Mouser Part No 946-PQ4323CGRHEAEC1Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel € 1,25	Min.: 5 000 Mult.: 5 000 : 5 000	SMD/SMT	QFN-14	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel
Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, MPQ4323MGQCE-AEC1-Z Monolithic Power Systems (MPS) 5 000: € 1,56 Non-Stocked Lead-Time 71 Weeks	Mfr. Part No. MPQ4323MGQCE-AEC1-Z Mouser Part No 946-PQ4323MGQCEAEC1Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 3A, Ultra-Compact, Learn More about Monolithic Power Systems (MPS) mps mpq4323 converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel € 1,56	Min.: 5 000 Mult.: 5 000 : 5 000	SMD/SMT	QFN-12	Buck	42 V	3 A	1 Output	1 uA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	AEC-Q100	MPQ4323	Reel

MPQ4323 42V Synchronous Step-Down Converters

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