Integrated Circuits (ICs)

LMR33630CRNXR

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SIMPLE SWITCHER® 3.8V TO 36V, 3A SYNCHRONOUS BUCK CONVERTER WITH ULTRA-LOW EMI

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Search across all available documentation for this part.

DocumentsHow a DC/DC converter package and pinout design can enhance automotive EMI perform Achieving CISPR-22 EMI Standards With HotRod™ Buck Designs (Rev. A)+14

Integrated Circuits (ICs)

LMR33630CRNXR

Active

Texas Instruments

SIMPLE SWITCHER® 3.8V TO 36V, 3A SYNCHRONOUS BUCK CONVERTER WITH ULTRA-LOW EMI

Deep-Dive with AI

DocumentsHow a DC/DC converter package and pinout design can enhance automotive EMI perform Achieving CISPR-22 EMI Standards With HotRod™ Buck Designs (Rev. A)+14

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LMR33630CRNXR

Current - Output	3 A
Frequency - Switching	2.1 MHz
Function	Step-Down
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	12-PowerVFQFN
Supplier Device Package	12-VQFN-HR (3x2)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	36 V
Voltage - Input (Min) [Min]	3.8 V
Voltage - Output (Max)	24 V
Voltage - Output (Min/Fixed)	1 V

LMR33630-Q1 Series

SIMPLE SWITCHER® 3.8V to 36V, 3A Synchronous Buck Converter With Ultra-Low EMI

Part	Supplier Device Package	Package / Case	Voltage - Output (Min/Fixed)	Frequency - Switching	Topology	Qualification	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output	Voltage - Input (Max) [Max]	Number of Outputs	Voltage - Output (Max)	Grade	Output Type	Function	Mounting Type	Voltage - Input (Min) [Min]	Output Configuration	Regulator Topology	Board Type	Main Purpose	Supplied Contents	Voltage - Output	Outputs and Type	Outputs and Type	Utilized IC / Part	Voltage - Input [Max]	Voltage - Input [Min]	Package / Case [y]	Package / Case [x]
Texas Instruments LMR33630AQRNXTQ1	12-VQFN-HR (3x2)	12-PowerVFQFN	1 V	400 kHz	Buck	AEC-Q100	-40 °C	125 °C	3 A	36 V	1	24 V	Automotive	Adjustable	Step-Down	Surface Mount Wettable Flank	3.8 V	Positive
Texas Instruments LMR33630BRNXR	12-VQFN-HR (3x2)	12-PowerVFQFN	1 V	1.4 MHz	Buck		-40 °C	125 ¯C	3 A	36 V	1	24 V		Adjustable	Step-Down	Surface Mount Wettable Flank	3.8 V	Positive
Texas Instruments LMR33630CDDAEVM				2.1 MHz					3 A										Buck	Fully Populated	DC/DC Step Down	Board(s)	3.3 V 5 V	Non-Isolated	1	LMR33630	36 V	5 V
Texas Instruments LMR33630ADDAR	8-SO PowerPad	8-PowerSOIC	1 V	400 kHz	Buck		-40 °C	125 ¯C	3 A	36 V	1	24 V		Adjustable	Step-Down	Surface Mount	3.8 V	Positive											3.9 mm	0.154 in
Texas Instruments LMR33630ARNXT	12-VQFN-HR (3x2)	12-PowerVFQFN	1 V	400 kHz	Buck		-40 °C	125 ¯C	3 A	36 V	1	24 V		Adjustable	Step-Down	Surface Mount Wettable Flank	3.8 V	Positive
Texas Instruments LMR33630CDDA	8-SO PowerPad	8-PowerSOIC	1 V	2.1 MHz	Buck		-40 °C	125 ¯C	3 A	36 V	1	24 V		Adjustable	Step-Down	Surface Mount	3.8 V	Positive											3.9 mm	0.154 in
Texas Instruments LMR33630BQRNXTQ1	12-VQFN-HR (3x2)	12-PowerVFQFN	1 V	1.4 MHz	Buck	AEC-Q100	-40 °C	125 °C	3 A	36 V	1	24 V	Automotive	Adjustable	Step-Down	Surface Mount Wettable Flank	3.8 V	Positive
Texas Instruments LMR33630CRNXR	12-VQFN-HR (3x2)	12-PowerVFQFN	1 V	2.1 MHz	Buck		-40 °C	125 ¯C	3 A	36 V	1	24 V		Adjustable	Step-Down	Surface Mount Wettable Flank	3.8 V	Positive
Texas Instruments LMR33630ARNXEVM				400 kHz					3 A										Buck	Fully Populated	DC/DC Step Down	Board(s)	3.3 V 5 V	Non-Isolated	1	LMR33630	36 V	5 V
Texas Instruments LMR33630CRNXEVM				2.1 MHz					3 A										Buck	Fully Populated	DC/DC Step Down	Board(s)	3.3 V 5 V	Non-Isolated	1	LMR33630	36 V	5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.18
		10	$ 1.95
		25	$ 1.84
		100	$ 1.57
		250	$ 1.47
		500	$ 1.29
		1000	$ 1.07
	Digi-Reel®	1	$ 2.18
		10	$ 1.95
		25	$ 1.84
		100	$ 1.57
		250	$ 1.47
		500	$ 1.29
		1000	$ 1.07
	Tape & Reel (TR)	3000	$ 0.91
Texas Instruments	LARGE T&R	1	$ 1.80
		100	$ 1.39
		250	$ 1.02
		1000	$ 0.73

Description

General part information

LMR33630-Q1 Series

The LMR33630 SIMPLE SWITCHER regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LMR33630 drives up to 3 A of load current from an input of up to 36 V. The LMR33630 provides high light load efficiency and output accuracy in a very small solution size. Features such as a power-good flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. The LMR33630 automatically folds back frequency at light load to improve efficiency. Integration eliminates most external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LMR33630 is available in an 8-pin HSOIC package and in a 12-pin 3 mm × 2 mm next generation VQFN package with wettable flanks. This device is also available in an AEC-Q100-qualified version.