Voltage Regulators - Switching Regulators

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LMR36503/LMR36503-Q1 65V 0.3A Buck Converter

Texas Instruments LMR36503/LMR36503-Q1 65V 0.3A Buck Converter is a small 65V, 0.3A synchronous step-down DC/DC converter in a 2mm x 2mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V, and other adjustable output voltages.

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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 3-V to 65-V 0.6-A u ltra-small synchrono LMR36506RF3RPER Texas Instruments 1: $4.83 12,142In Stock	Mfr. Part # LMR36506RF3RPER Mouser Part # 595-LMR36506RF3RPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	12,142In Stock	Cut Tape $4.83 $3.67 $3.38 $3.07 View Reel $2.45 $2.91 $2.82 $2.74 $2.45 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3.3 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono LMR36503R5RPER Texas Instruments 1: $4.46 10,217In Stock	Mfr. Part # LMR36503R5RPER Mouser Part # 595-LMR36503R5RPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	10,217In Stock	Cut Tape $4.46 $3.38 $3.11 $2.82 View Reel $2.30 $2.68 $2.67 $2.51 $2.30 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	5 V	300 mA	1 Output	4 uA	400 kHz to 1 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi LMR36506RS3QRPERQ1 Texas Instruments 1: $5.50 10,079In Stock	Mfr. Part # LMR36506RS3QRPERQ1 Mouser Part # 595-R36506RS3QRPERQ1	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	10,079In Stock	Cut Tape $5.50 $4.19 $3.87 $3.50 View Reel $2.89 $3.33 $3.23 $3.19 $2.89 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3.3 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono LMR36506R5RPER Texas Instruments 1: $4.83 3,257In Stock	Mfr. Part # LMR36506R5RPER Mouser Part # 595-LMR36506R5RPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	3,257In Stock	Cut Tape $4.83 $3.67 $3.38 $3.07 View Reel $2.55 $2.92 $2.91 $2.74 $2.55 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	5 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve LMR36503RS3QRPERQ1 Texas Instruments 1: $5.24 6,109In Stock	Mfr. Part # LMR36503RS3QRPERQ1 Mouser Part # 595-R36503RS3QRPERQ1	Texas Instruments	Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	6,109In Stock	Cut Tape $5.24 $3.99 $3.68 $3.34 View Reel $2.94 $3.18 $3.04 $3.02 $2.94 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3 V	300 mA	1 Output	4 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono LMR36506R3RPER Texas Instruments 1: $4.95 A tariff of 38% may be applied if shipping to the United States. 1,862In Stock	Mfr. Part # LMR36506R3RPER Mouser Part # 595-LMR36506R3RPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	1,862In Stock	Cut Tape $4.95 $3.73 $3.42 $3.09 View Reel $2.67 $2.93 $2.91 $2.73 $2.67 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3.3 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve LMR36503RS5QRPERQ1 Texas Instruments 1: $5.10 1,514In Stock	Mfr. Part # LMR36503RS5QRPERQ1 Mouser Part # 595-R36503RS5QRPERQ1	Texas Instruments	Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	1,514In Stock	Cut Tape $5.10 $3.89 $3.58 $3.25 View Reel $2.82 $3.10 $3.04 $2.92 $2.82 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3 V	300 mA	1 Output	4 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono LMR36503RFRPER Texas Instruments 1: $4.22 A tariff of 38% may be applied if shipping to the United States. 2,293In Stock	Mfr. Part # LMR36503RFRPER Mouser Part # 595-LMR36503RFRPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	2,293In Stock	Cut Tape $4.22 $3.59 Reel $2.74 Quote Quote MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	Adjustable	300 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono LMR36506RRPER Texas Instruments 1: $4.93 A tariff of 38% may be applied if shipping to the United States. 2,332In Stock	Mfr. Part # LMR36506RRPER Mouser Part # 595-LMR36506RRPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	2,332In Stock	Cut Tape $4.93 $3.75 $3.45 $3.13 View Reel $2.49 $2.98 $2.49 Quote MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	1 V to 60 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve LMR36503MSC3RPERQ1 Texas Instruments 1: $5.10 4,649In Stock	Mfr. Part # LMR36503MSC3RPERQ1 Mouser Part # 595-R36503MSC3RPERQ1	Texas Instruments	Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	4,649In Stock	Cut Tape $5.10 $3.89 $3.58 $3.25 View Reel $2.85 $3.10 $3.04 $3.02 $2.85 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3.3 V	300 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve LMR36503MSCQRPERQ1 Texas Instruments 1: $5.19 2,201In Stock	Mfr. Part # LMR36503MSCQRPERQ1 Mouser Part # 595-R36503MSCQRPERQ1	Texas Instruments	Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	2,201In Stock	Cut Tape $5.19 $3.96 $3.65 $3.31 View Reel $2.94 $3.14 $3.04 $3.01 $2.94 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	Adjustable	300 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi LMR36506MSCQRPERQ1 Texas Instruments 1: $5.67 45In Stock 6,000Expected 1/28/2027	Mfr. Part # LMR36506MSCQRPERQ1 Mouser Part # 595-R36506MSCQRPERQ1	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	45In Stock 6,000Expected 1/28/2027	Cut Tape $5.67 $4.32 $3.98 $3.61 View Reel $3.08 $3.43 $3.32 $3.28 $3.08 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	Adjustable	600 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono LMR36506RFRPER Texas Instruments 1: $4.83 A tariff of 38% may be applied if shipping to the United States. 342In Stock	Mfr. Part # LMR36506RFRPER Mouser Part # 595-LMR36506RFRPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	342In Stock	Cut Tape $4.83 $3.67 $3.38 $3.07 View Reel $2.59 $2.92 $2.91 $2.74 $2.59 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	1 V to 60 V	600 mA	1 Output	4 uA	400 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve LMR36503MSC5RPERQ1 Texas Instruments 1: $5.04 147In Stock	Mfr. Part # LMR36503MSC5RPERQ1 Mouser Part # 595-R36503MSC5RPERQ1	Texas Instruments	Switching Voltage Regulators Automotive 3-V to 65 -V 0.3-A buck conve Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	147In Stock	Cut Tape $5.04 $3.84 $3.54 $3.21 View Reel $2.65 $3.05 $2.96 $2.92 $2.65 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	5 V	300 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi LMR36506MSC5RPERQ1 Texas Instruments 1: $5.50 11,383On Order	Mfr. Part # LMR36506MSC5RPERQ1 Mouser Part # 595-R36506MSC5RPERQ1	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	11,383On Order On Order Ship Dates Mfr. #: LMR36506MSC5RPERQ1 Stock: 0 On Order: 5,383 Expected 12/10/2026 6,000 Expected 2/1/2027 Factory Lead-Time: 16 Weeks	Cut Tape $5.50 $4.19 $3.87 $3.50 View Reel $3.11 $3.33 $3.23 $3.19 $3.11 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	5 V	600 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono LMR36503R5URPER Texas Instruments 1: $4.67 A tariff of 38% may be applied if shipping to the United States. 2,981Expected 10/9/2026	Mfr. Part # LMR36503R5URPER Mouser Part # 595-LMR36503R5URPER	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.3-A u ltra-small synchrono Learn More about Texas Instruments ti lmr36503 q1 buck converter	Datasheet	2,981Expected 10/9/2026	Cut Tape $4.67 $3.55 $3.27 $2.96 View Reel $2.52 $2.81 $2.72 $2.52 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	5 V	300 mA	1 Output	1 uA	200 kHz to 2.2 MHz	- 40 C	+ 150 C	LMR36503	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi LMR36506MSC3RPERQ1 Texas Instruments 1: $5.50 20Expected 12/3/2026	Mfr. Part # LMR36506MSC3RPERQ1 Mouser Part # 595-R36506MSC3RPERQ1	Texas Instruments	Switching Voltage Regulators 3-V to 65-V 0.6-A b uck converter optimi Learn More about Texas Instruments ti lmr36506 q1 buck converter	Datasheet	20Expected 12/3/2026	Cut Tape $5.50 $4.19 $3.87 $3.50 View Reel $3.08 $3.33 $3.23 $3.19 $3.08 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-HR-9	Buck	3.3 V	600 mA	1 Output	4 uA	2.2 MHz	- 40 C	+ 150 C	LMR36506	Reel, Cut Tape, MouseReel

LMR36503/LMR36503-Q1 65V 0.3A Buck Converter

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