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LMR51603/LMR51603-Q1 Synchronous Buck Converters

Texas Instruments LMR51603/LMR51603-Q1 Synchronous Buck Converters drive up to 300mA of load current. The wide-V_IN, easy-to-use, synchronous buck converter is designed for various industrial applications for power conditioning from an unregulated source, with a 4V to 65V wide input range.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	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 4.5V-to-65V 0.3A syn chronous buck conve LMR51603XDBVR Texas Instruments 1: Rp19.263 3.210In Stock 3.000Expected 15/03/2027 New Product	Mfr. Part No. LMR51603XDBVR Mouser Part No 595-LMR51603XDBVR New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	3.210In Stock 3.000Expected 15/03/2027	Cut Tape Rp19.263 Rp13.943 Rp12.585 Rp11.099 View Reel Rp9.687 Rp10.384 Rp9.962 Rp9.687 Rp9.687	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	400 kHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603XFDBVR Texas Instruments 1: Rp19.263 3.465In Stock New Product	Mfr. Part No. LMR51603XFDBVR Mouser Part No 595-LMR51603XFDBVR New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	3.465In Stock	Cut Tape Rp19.263 Rp13.943 Rp12.585 Rp11.319 View Reel Rp9.888 Rp10.586 Rp10.164 Rp9.888 Rp9.888 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	400 kHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603XQDBVRQ1 Texas Instruments 1: Rp22.566 5.340In Stock New Product	Mfr. Part No. LMR51603XQDBVRQ1 Mouser Part No 595-LMR51603XQDBVRQ1 New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve	Datasheet	5.340In Stock	Cut Tape Rp22.566 Rp16.236 Rp14.695 Rp12.971 View Reel Rp11.668 Rp12.163 Rp11.668 Rp11.668 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	26.5 uA	400 kHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603Y3DBVR Texas Instruments 1: Rp19.263 2.422In Stock New Product	Mfr. Part No. LMR51603Y3DBVR Mouser Part No 595-LMR51603Y3DBVR New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	2.422In Stock	Cut Tape Rp19.263 Rp13.943 Rp12.585 Rp11.099 View Reel Rp9.687 Rp10.384 Rp9.962 Rp9.687 Rp9.687 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	1.1 MHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603YDBVR Texas Instruments 1: Rp19.814 2.753In Stock 3.000Expected 28/01/2027 New Product	Mfr. Part No. LMR51603YDBVR Mouser Part No 595-LMR51603YDBVR New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	2.753In Stock 3.000Expected 28/01/2027	Cut Tape Rp19.814 Rp14.236 Rp12.842 Rp11.319 View Reel Rp9.888 Rp10.586 Rp10.164 Rp9.888 Rp9.888 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	1.1 MHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603YFDBVR Texas Instruments 1: Rp19.263 848In Stock 3.000Expected 04/02/2027 New Product	Mfr. Part No. LMR51603YFDBVR Mouser Part No 595-LMR51603YFDBVR New Product	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	848In Stock 3.000Expected 04/02/2027	Cut Tape Rp19.263 Rp13.943 Rp12.585 Rp11.099 View Reel Rp9.687 Rp10.384 Rp9.962 Rp9.687 Rp9.687 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	1.1 MHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve LMR51603XFQDBVRQ1 Texas Instruments 1: Rp22.382 5.246In Stock	Mfr. Part No. LMR51603XFQDBVRQ1 Mouser Part No 595-LMR51603XFQDBRQ1	Texas Instruments	Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve Learn More about Texas Instruments ti lmr51603 q1 converters	Datasheet	5.246In Stock	Cut Tape Rp22.382 Rp16.200 Rp14.677 Rp12.971 View Reel Rp11.283 Rp12.163 Rp11.668 Rp11.283 Rp11.283 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000			SMD/SMT	SOT-23-6	Buck	800 mV to 28 V	300 mA	1 Output	420 uA	400 kHz	- 40 C	+ 150 C	LMR51603	Reel, Cut Tape, MouseReel