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 (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
Texas Instruments Switching Voltage Regulators 4.5V-to-65V 0.3A syn chronous buck conve
Datasheet
4,994In Stock
3,000Expected 03-06-2026
Min.: 1
Mult.: 1
Max.: 200
: 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
3,028In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 150
: 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
4,452In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 450
: 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 conve
Datasheet
2,063In Stock
Min.: 1
Mult.: 1
Max.: 50
: 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
2,587In Stock
Min.: 1
Mult.: 1
Max.: 50
: 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 conve
Datasheet
2,696In Stock
3,000Expected 08-06-2026
MouseReel Available
Min.: 1
Mult.: 1
Max.: 200
: 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 conve
Datasheet
2,618In Stock
Min.: 1
Mult.: 1
Max.: 100
: 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