Voltage Regulators - Switching Regulators

.hide-partial { max-height: none; } .show-more { display: none; }

MPQ4321C Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4321C Synchronous Step-Down Converters are integrated with internal high-side and low-side power MOSFETs. These converters feature a 3.3V to 36V input range with a 42V load dump tolerance and up to 1A continuous output current. The MPQ4321C step-down converters offer 350kHz to 2.5MHz configurable frequency range, and 1μA shutdown current (I_SD) that allows the converter to be used in battery-powered applications. The MPQ4321C step-down converters support frequency foldback that prevents inductor current (I_L) runaway during start-up.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 8

Applied Filters:

Package / Case

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PHP) 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	Series	Packaging
Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter MPQ4321CGDE-5-AEC1-P Monolithic Power Systems (MPS) 1: ₱169.33 475In Stock	Mfr. Part # MPQ4321CGDE-5-AEC1-P Mouser Part # 946-MPQ4321CGDE-5-P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	475In Stock	Cut Tape ₱169.33 ₱126.38 ₱115.95 ₱103.68 Reel ₱93.87 View ₱98.16 ₱88.96 ₱86.50 ₱85.28	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter MPQ4321CGDE-AEC1-P Monolithic Power Systems (MPS) 1: ₱169.33 189In Stock	Mfr. Part # MPQ4321CGDE-AEC1-P Mouser Part # 946-MPQ4321CGDE-P	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	189In Stock	Cut Tape ₱169.33 ₱126.38 ₱115.95 ₱103.68 Reel ₱96.32 View ₱98.16 ₱92.03 ₱90.18 ₱89.57	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel, Cut Tape
Switching Voltage Regulators Load Dump Tolerant, 1A MPQ4321CGLE-AEC1-P Monolithic Power Systems (MPS) 1: ₱169.33 500In Stock	Mfr. Part # MPQ4321CGLE-AEC1-P Mouser Part # 946-MPQ4321CGLE-P	Monolithic Power Systems (MPS)	Switching Voltage Regulators Load Dump Tolerant, 1A Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	500In Stock	Cut Tape ₱169.33 ₱126.38 ₱115.95 ₱103.68 Reel ₱95.71 View ₱98.16 ₱88.96 ₱86.50 ₱85.28	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel, Cut Tape
Switching Voltage Regulators Load Dump Tolerant, 1A MPQ4321CGRHE-AEC1-P Monolithic Power Systems (MPS) 1: ₱169.33 500In Stock	Mfr. Part # MPQ4321CGRHE-AEC1-P Mouser Part # 946-MPQ4321CGRHE-P	Monolithic Power Systems (MPS)	Switching Voltage Regulators Load Dump Tolerant, 1A Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	500In Stock	Cut Tape ₱169.33 ₱126.38 ₱115.95 ₱103.68 Reel ₱93.87 View ₱98.16 ₱88.96 ₱86.50 ₱85.28	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFN-14	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel, Cut Tape
Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter MPQ4321CGDE-5-AEC1-Z Monolithic Power Systems (MPS) 5,000: ₱92.64 Non-Stocked Lead-Time 71 Weeks	Mfr. Part # MPQ4321CGDE-5-AEC1-Z Mouser Part # 946-MPQ4321CGDE-5-Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel ₱92.64	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel
Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter MPQ4321CGDE-AEC1-Z Monolithic Power Systems (MPS) 5,000: ₱81.60 Non-Stocked Lead-Time 71 Weeks	Mfr. Part # MPQ4321CGDE-AEC1-Z Mouser Part # 946-MPQ4321CGDE-Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators 42V Load Dump Tolerant, 1A, Ultra-Compact, Synchronous Step-Down Converter Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel ₱81.60	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel
Switching Voltage Regulators Load Dump Tolerant, 1A MPQ4321CGLE-AEC1-Z Monolithic Power Systems (MPS) 5,000: ₱76.07 Non-Stocked Lead-Time 71 Weeks	Mfr. Part # MPQ4321CGLE-AEC1-Z Mouser Part # 946-MPQ4321CGLE-Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators Load Dump Tolerant, 1A Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel ₱76.07	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	QFN-12	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel
Switching Voltage Regulators Load Dump Tolerant, 1A MPQ4321CGRHE-AEC1-Z Monolithic Power Systems (MPS) 5,000: ₱76.07 Non-Stocked Lead-Time 71 Weeks	Mfr. Part # MPQ4321CGRHE-AEC1-Z Mouser Part # 946-MPQ4321CGRHE-Z	Monolithic Power Systems (MPS)	Switching Voltage Regulators Load Dump Tolerant, 1A Learn More about Monolithic Power Systems (MPS) mps mpq4321c step down converters	Datasheet	Non-Stocked Lead-Time 71 Weeks	Reel ₱76.07	Min.: 5,000 Mult.: 5,000 : 5,000	SMD/SMT	QFN-14	Buck	5 V	1 A	1 Output	1.2 mA	350 kHz to 2.5 MHz	- 40 C	+ 150 C	MPQ4321	Reel

MPQ4321C Synchronous Step-Down Converters

Applied Filters:

Customer Service Office

Company

Resources

Support