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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 (INR) 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: ₹100.32 4,026In 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	4,026In Stock 3,000Expected 15-03-2027	Cut Tape ₹100.32 ₹72.61 ₹65.54 ₹57.80 View Reel ₹50.45 ₹54.08 ₹51.88 ₹50.45 ₹50.45	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: ₹100.32 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 ₹100.32 ₹72.61 ₹65.54 ₹58.95 View Reel ₹51.50 ₹55.13 ₹52.93 ₹51.50 ₹51.50 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: ₹117.51 4,967In 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	4,967In Stock	Cut Tape ₹117.51 ₹84.55 ₹76.53 ₹67.55 View Reel ₹60.76 ₹63.34 ₹60.76 ₹60.76 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: ₹100.32 2,391In 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	2,391In Stock	Cut Tape ₹100.32 ₹72.61 ₹65.54 ₹57.80 View Reel ₹50.45 ₹54.08 ₹51.88 ₹50.45 ₹50.45 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: ₹103.18 1,036In Stock 6,000On Order 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	1,036In Stock 6,000On Order On Order Ship Dates Mfr. No: LMR51603YDBVR Stock: 1,036 Can Dispatch Immediately On Order: 3,000 Expected 28-01-2027 3,000 Expected 09-03-2027 Factory Lead Time: 20 Weeks	Cut Tape ₹103.18 ₹74.14 ₹66.88 ₹58.95 View Reel ₹51.50 ₹55.13 ₹52.93 ₹51.50 ₹51.50 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: ₹100.32 520In 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	520In Stock 3,000Expected 04-02-2027	Cut Tape ₹100.32 ₹72.61 ₹65.54 ₹57.80 View Reel ₹50.45 ₹54.08 ₹51.88 ₹50.45 ₹50.45 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: ₹116.56 4,977In 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	4,977In Stock	Cut Tape ₹116.56 ₹84.36 ₹76.43 ₹67.55 View Reel ₹58.76 ₹63.34 ₹60.76 ₹58.76 ₹58.76 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