Voltage Regulators - Switching Regulators – Mouser Thailand

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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 (THB) 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: ฿34.99 3,035In Stock 3,000Expected 12/21/2026 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	3,035In Stock 3,000Expected 12/21/2026	Cut Tape ฿34.99 ฿25.32 ฿22.86 ฿20.16 Reel ฿16.99 View ฿18.86 ฿18.09 ฿17.59 ฿16.59	Min.: 1 Mult.: 1 : 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: ฿34.99 3,454In 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	3,454In Stock	Cut Tape ฿34.99 ฿25.32 ฿22.86 ฿20.56 Reel ฿16.63 View ฿19.23 ฿18.46 ฿17.96 ฿16.23 MouseReel Available	Min.: 1 Mult.: 1 : 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: ฿40.98 4,705In 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	4,705In Stock	Cut Tape ฿40.98 ฿29.49 ฿26.69 ฿23.56 Reel ฿21.16 View ฿22.09 ฿21.19 ฿19.93 MouseReel Available	Min.: 1 Mult.: 1 : 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: ฿34.99 2,385In 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	2,385In Stock	Cut Tape ฿34.99 ฿25.32 ฿22.86 ฿20.16 Reel ฿16.63 View ฿18.86 ฿18.09 ฿17.59 ฿16.23 MouseReel Available	Min.: 1 Mult.: 1 : 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: ฿40.65 1,998In 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	1,998In Stock	Cut Tape ฿40.65 ฿29.42 ฿26.66 ฿23.56 Reel ฿19.23 View ฿22.09 ฿21.19 ฿20.49 ฿18.83 MouseReel Available	Min.: 1 Mult.: 1 : 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 LMR51603YDBVR Texas Instruments 1: ฿35.99 55In 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	55In Stock 6,000On Order On Order Ship Dates Mfr. No: LMR51603YDBVR Stock: 55 Can Dispatch Immediately On Order: 3,000 Expected 11/23/2026 3,000 Expected 12/21/2026 Factory Lead Time: 26 Weeks	Cut Tape ฿35.99 ฿25.86 ฿23.32 ฿20.56 View Reel ฿16.66 ฿19.23 ฿18.46 ฿17.96 ฿16.66 MouseReel Available	Min.: 1 Mult.: 1 : 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: ฿34.99 107In Stock 3,000Expected 5/31/2027 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	107In Stock 3,000Expected 5/31/2027	Cut Tape ฿34.99 ฿25.32 ฿22.86 ฿20.16 Reel ฿16.63 View ฿18.86 ฿18.09 ฿17.59 ฿16.23 MouseReel Available	Min.: 1 Mult.: 1 : 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