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 (USD) 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 Automotive 36-V 3-A low EMI synchronous LMQ66430MC3RXBRQ1 Texas Instruments 1: $4.65 6,817In Stock	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	6,817In Stock	Cut Tape $4.65 $3.50 $3.22 $2.90 View Reel $2.51 $2.76 $2.74 $2.57 $2.51 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 36-V 2-A low-EMI sy nchronous step-down LMQ66420R5RXBR Texas Instruments 1: $3.82 3,513In 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	3,513In Stock	Cut Tape $3.82 $2.88 $2.65 $2.39 Reel $2.10 View $2.27 $2.25 $2.19 $2.00 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: $3.46 1,012In 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	1,012In Stock	Cut Tape $3.46 $2.61 $2.39 $2.16 Reel $1.82 View $2.04 $2.02 $1.96 $1.80 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: $3.46 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 $3.46 $2.61 $2.39 $2.16 View Reel $1.92 $2.04 $2.02 $1.92 $1.92 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: $3.46 2,990In 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	2,990In Stock	Cut Tape $3.46 $2.61 $2.39 $2.16 Reel $1.82 View $2.04 $2.02 $1.96 $1.80 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 LMQ66430MA3RXBRQ1 Texas Instruments 1: $4.57 2,815In Stock	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	2,815In Stock	Cut Tape $4.57 $3.47 $3.19 $2.89 View Reel $2.46 $2.75 $2.74 $2.65 $2.46 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 3-A low EMI synchronous LMQ66430MA5RXBRQ1 Texas Instruments 1: $4.57 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 $4.57 $3.47 $3.19 $2.89 View Reel $2.46 $2.75 $2.74 $2.58 $2.46 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 1- A low-EMI synchronou LMQ66410MC3RXBRQ1 Texas Instruments 1: $3.28 2,721In Stock	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	2,721In Stock	Cut Tape $3.28 $2.79 Reel $2.79 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 LMQ66420MC5RXBRQ1 Texas Instruments 1: $4.36 2,317In 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	2,317In Stock	Cut Tape $4.36 $3.29 $3.02 $2.73 $2.61 Reel $2.21 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: $4.30 116In Stock 3,000Expected 11/5/2026	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	116In Stock 3,000Expected 11/5/2026	Cut Tape $4.30 $3.26 $3.00 $2.71 View Reel $2.31 $2.58 $2.57 $2.48 $2.31 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 36-V 3-A low-EMI sy nchronous step-down LMQ66430R5RXBR Texas Instruments 1: $3.71 39In Stock 9,000On 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	39In Stock 9,000On Order On Order Ship Dates Mfr. #: LMQ66430R5RXBR Stock: 39 Can Ship Immediately On Order: 3,000 Expected 11/19/2026 6,000 Expected 12/31/2026 Factory Lead-Time: 9 Weeks	Cut Tape $3.71 $2.80 $2.63 $2.32 Reel $1.96 View $2.20 $2.18 $2.12 $1.94 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 2- A low-EMI synchronou LMQ66420MA5RXBRQ1 Texas Instruments 1: $4.45 1In Stock 3,000Expected 11/23/2026	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	1In Stock 3,000Expected 11/23/2026	Cut Tape $4.45 $3.36 $3.09 $2.79 View Reel $2.31 $2.65 $2.64 $2.55 $2.31 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 Automotive 36-V 2- A low-EMI synchronou LMQ66420MA3RXBRQ1 Texas Instruments 1: $4.36 1,321Expected 12/31/2026	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 12/31/2026	Cut Tape $4.36 $3.29 $3.02 $2.73 View Reel $2.40 $2.59 $2.57 $2.41 $2.40 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 3-A low EMI synchronous LMQ66430MC5RXBRQ1 Texas Instruments 1: $4.57 2,991Expected 12/10/2026	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	2,991Expected 12/10/2026	Cut Tape $4.57 $3.47 $3.19 $2.89 View Reel $2.46 $2.75 $2.74 $2.65 $2.46 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

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