LMR51603/LMR51603-Q1 Synchronous Buck Converters

Texas Instruments LMR51603/LMR51603-Q1 Synchronous Buck Converters drive up to 300mA of load current. The wide-VIN, 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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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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conver
Datasheet
3.785In Stock
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conver
Datasheet
7.216In Stock
3.000Expected 19/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conver
Datasheet
3.357In Stock
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conver
Datasheet
2.859In Stock
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve
Datasheet
1.846In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve
Datasheet
1.463In Stock
6.000Expected 19/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conver
Datasheet
2.800In Stock
Min.: 1
Mult.: 1
Reel: 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