Voltage Regulators - Switching Regulators

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LMQ664x0/LMQ664x0-Q1 Step-Down Converters

Texas Instruments LMQ664x0/LMQ664x0-Q1 Synchronous Step-Down Converter is a small 36V, 3A (available in 2A and 1A variants) synchronous step-down DC/DC converter with an integrated bypass and bootstrap capacitor. These come in an enhanced HotRod™ QFN package. This easy-to-use converter supports a wide input voltage range of 2.7V to 36V (after start-up or after operating) with transients up to 42V.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) 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 36-V 2-A low-EMI sy nchronous step-down LMQ66420R5RXBR Texas Instruments 1: S/ 14.87 3,503In Stock	Mfr. Part # LMQ66420R5RXBR Mouser Part # 595-LMQ66420R5RXBR	Texas Instruments	Switching Voltage Regulators 36-V 2-A low-EMI sy nchronous step-down Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	3,503In Stock	Cut Tape S/ 14.87 S/ 11.21 S/ 10.32 S/ 9.30 View Reel S/ 8.17 S/ 8.84 S/ 8.76 S/ 8.52 S/ 8.17 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V	2 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66420	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou LMQ66410MC5RXBRQ1 Texas Instruments 1: S/ 15.34 1,062In Stock	Mfr. Part # LMQ66410MC5RXBRQ1 Mouser Part # 595-MQ66410MC5RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	1,062In Stock	Cut Tape S/ 15.34 S/ 11.56 S/ 10.63 S/ 9.58 S/ 9.15 Reel S/ 7.75 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V	1 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66410	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou LMQ66410MA3RXBRQ1 Texas Instruments 1: S/ 15.34 2,927In Stock	Mfr. Part # LMQ66410MA3RXBRQ1 Mouser Part # 595-LMQ66410MA3RXRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,927In Stock	Cut Tape S/ 15.34 S/ 11.56 S/ 10.63 S/ 9.58 S/ 9.15 Reel S/ 9.15 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	3.3 V	1 A	1 Output	1 uA	400 kHz	- 40 C	+ 150 C	LMQ66410	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou LMQ66410MA5RXBRQ1 Texas Instruments 1: S/ 15.30 2,986In Stock	Mfr. Part # LMQ66410MA5RXBRQ1 Mouser Part # 595-LMQ66410MA5RXRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,986In Stock	Cut Tape S/ 15.30 S/ 11.52 S/ 10.59 S/ 9.54 View Reel S/ 8.25 S/ 9.07 S/ 8.99 S/ 8.45 S/ 8.25 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V, 1 V to 18 V	1 A	1 Output	2 uA	400 kHz	- 40 C	+ 150 C	LMQ66410	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous LMQ66430MA5RXBRQ1 Texas Instruments 1: S/ 17.79 2,911In Stock	Mfr. Part # LMQ66430MA5RXBRQ1 Mouser Part # 595-LMQ66430MA5RXRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,911In Stock	Cut Tape S/ 17.79 S/ 13.51 S/ 12.42 S/ 11.25 View Reel S/ 9.58 S/ 10.70 S/ 10.67 S/ 10.04 S/ 9.58 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V, 1 V to 18 V	3 A	1 Output	2 uA	2.2 MHz	- 40 C	+ 150 C	LMQ66430	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou LMQ66420MC5RXBRQ1 Texas Instruments 1: S/ 13.55 2,287In Stock	Mfr. Part # LMQ66420MC5RXBRQ1 Mouser Part # 595-MQ66420MC5RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,287In Stock	Cut Tape S/ 13.55 S/ 10.20 S/ 9.34 S/ 9.15 Reel S/ 9.15 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V	2 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66420	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou LMQ66420MC3RXBRQ1 Texas Instruments 1: S/ 16.74 99In Stock 3,000Expected 12/3/2026	Mfr. Part # LMQ66420MC3RXBRQ1 Mouser Part # 595-MQ66420MC3RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	99In Stock 3,000Expected 12/3/2026	Cut Tape S/ 16.74 S/ 12.69 S/ 11.68 S/ 10.55 View Reel S/ 9.15 S/ 10.04 S/ 10.00 S/ 9.15 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	3.3 V	2 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66420	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou LMQ66420MA5RXBRQ1 Texas Instruments 1: S/ 19.46 15In Stock 3,000Expected 1/7/2027	Mfr. Part # LMQ66420MA5RXBRQ1 Mouser Part # 595-LMQ66420MA5RXRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	15In Stock 3,000Expected 1/7/2027	Cut Tape S/ 19.46 S/ 14.67 S/ 13.47 S/ 12.18 View Reel S/ 10.51 S/ 11.52 S/ 11.44 S/ 10.74 S/ 10.51 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V, 1 V to 18 V	2 A	1 Output	2 uA	400 kHz	- 40 C	+ 150 C	LMQ66420	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 36-V 3-A low-EMI sy nchronous step-down LMQ66430R5RXBR Texas Instruments 1: S/ 14.99 7,891On Order	Mfr. Part # LMQ66430R5RXBR Mouser Part # 595-LMQ66430R5RXBR	Texas Instruments	Switching Voltage Regulators 36-V 3-A low-EMI sy nchronous step-down Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	7,891On Order On Order Ship Dates Mfr. #: LMQ66430R5RXBR Stock: 0 On Order: 1,891 Expected 1/1/2027 6,000 Expected 2/18/2027 Factory Lead-Time: 12 Weeks	Cut Tape S/ 14.99 S/ 11.17 S/ 10.24 S/ 9.03 View Reel S/ 7.79 S/ 8.56 S/ 8.49 S/ 7.79 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	1 V to 35 V	3 A	1 Output	3 uA	2.2 MHz	- 40 C	+ 125 C	LMQ66430	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous LMQ66430MC3RXBRQ1 Texas Instruments 1: S/ 18.10 9,000On Order	Mfr. Part # LMQ66430MC3RXBRQ1 Mouser Part # 595-MQ66430MC3RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	9,000On Order On Order Ship Dates Mfr. #: LMQ66430MC3RXBRQ1 Stock: 0 On Order: 3,000 Expected 3/18/2027 6,000 Expected 3/25/2027 Factory Lead-Time: 20 Weeks	Cut Tape S/ 18.10 S/ 13.62 S/ 12.53 S/ 11.29 View Reel S/ 9.77 S/ 10.74 S/ 10.67 S/ 10.00 S/ 9.77 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	1 V to 35 V	3 A	1 Output	3 uA	2.2 MHz	- 40 C	+ 150 C	LMQ66430	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous LMQ66430MC5RXBRQ1 Texas Instruments 1: S/ 17.79 6,039On Order	Mfr. Part # LMQ66430MC5RXBRQ1 Mouser Part # 595-MQ66430MC5RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	6,039On Order On Order Ship Dates Mfr. #: LMQ66430MC5RXBRQ1 Stock: 0 On Order: 39 Expected 1/14/2027 6,000 Expected 3/29/2027 Factory Lead-Time: 20 Weeks	Cut Tape S/ 17.79 S/ 13.51 S/ 12.42 S/ 11.25 View Reel S/ 9.58 S/ 10.70 S/ 10.67 S/ 10.32 S/ 9.58 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	5 V	3 A	1 Output	1.6 uA	2.2 MHz	- 40 C	+ 150 C	LMQ66430	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous LMQ66430MA3RXBRQ1 Texas Instruments 1: S/ 17.79 2,993Expected 3/20/2028	Mfr. Part # LMQ66430MA3RXBRQ1 Mouser Part # 595-LMQ66430MA3RXRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 3-A low EMI synchronous Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,993Expected 3/20/2028	Cut Tape S/ 17.79 S/ 13.51 S/ 12.42 S/ 11.25 View Reel S/ 9.58 S/ 10.70 S/ 10.67 S/ 10.32 S/ 9.58 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	3.3 V, 1 V to 18 V	3 A	1 Output	1.5 uA	2.2 MHz	- 40 C	+ 150 C	LMQ66430	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou LMQ66410MC3RXBRQ1 Texas Instruments 1: S/ 15.34 2,955Expected 3/5/2027	Mfr. Part # LMQ66410MC3RXBRQ1 Mouser Part # 595-MQ66410MC3RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 1- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	2,955Expected 3/5/2027	Cut Tape S/ 15.34 S/ 11.56 S/ 10.63 S/ 9.58 S/ 9.15 Reel S/ 9.15 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	3.3 V	1 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66410	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou LMQ66420MA3RXBRQ1 Texas Instruments 1: S/ 16.97 1,321Expected 2/8/2027	Mfr. Part # LMQ66420MA3RXBRQ1 Mouser Part # 595-MQ66420MA3RXBRQ1	Texas Instruments	Switching Voltage Regulators Automotive 36-V 2- A low-EMI synchronou Learn More about Texas Instruments ti lmq664x0 step down converter	Datasheet	1,321Expected 2/8/2027	Cut Tape S/ 16.97 S/ 12.81 S/ 11.76 S/ 10.63 View Reel S/ 9.73 S/ 10.08 S/ 10.00 S/ 9.73 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-FCRLF-EP-14	Buck	3.3 V	2 A	1 Output	250 nA	2.2 MHz	- 40 C	+ 150 C	LMQ66420	Reel, Cut Tape, MouseReel

LMQ664x0/LMQ664x0-Q1 Step-Down Converters

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