LM3402/LM3402HV Constant Current Buck Regulators

Texas Instruments LM3402/LM3402HV Constant Current Buck Regulators are monolithic switching regulators designed to deliver constant currents to high-power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 735mA for step-down (Buck) regulators. Hysteretic control with controlled on-time is coupled with an external resistor. This allows the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel-connected arrays of LEDs. They can be of varying number and type, LED dimming by pulse width modulation (PWM) or broken/open LED protection. Low-power shutdown and thermal shutdown complete the feature set available with this device.

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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 Number of Outputs
Topology
Output Current
Package/Case
Supply Voltage - Max
Supply Voltage - Min
Operating Frequency
Output Voltage
Series
Minimum Operating Temperature
Maximum Operating Temperature
Packaging

Texas Instruments LED Lighting Driver ICs 42-V 0.5-A constant current buck LED dri A 926-LM3402MRX/NOPB
Datasheet
38.185In Stock
Rp55.771,84
Rp41.828,88
Rp34.490,48
Rp32.839,34
View
Min.: 1
Mult.: 1
1 Output Buck 500 mA SO-PowerPad-8 42 V 6 V 10 kHz to 1 MHz 40 V LM3402 - 40 C + 125 C Tube

Texas Instruments LED Lighting Driver ICs 75-V 0.5A constant c urrent buck LED dri A 926-LM3402HVMR/NOPB
Datasheet
888In Stock
Cut Tape
Rp44.397,32
Rp33.022,80
Rp30.270,90
Rp26.968,62
Reel
Rp22.932,50
View
MouseReel Available
Min.: 1
Mult.: 1
: 2.500
1 Output Buck 500 mA SO-PowerPad-8 75 V 6 V 10 kHz to 1 MHz 73 V LM3402HV - 40 C + 125 C Reel, Cut Tape, MouseReel

Texas Instruments LED Lighting Driver ICs 75-V 0.5A constant c urrent buck LED dri A 926-LM3402HVMMX/NOPB
Datasheet
1.369In Stock
Cut Tape
Rp52.286,10
Rp39.076,98
Rp35.774,70
Rp32.105,50
Reel
Rp28.069,38
View
MouseReel Available
Min.: 1
Mult.: 1
: 1.000
1 Output Buck 500 mA VSSOP-8 75 V 6 V 10 kHz to 1 MHz 73 V LM3402HV - 40 C + 125 C Reel, Cut Tape, MouseReel

Texas Instruments LED Lighting Driver ICs 0.5A CONSTANT CRNT B UCK REG A 926-LM340 A 926-LM3402MMX/NOPB
Datasheet
7.879In Stock
7.000Expected 23/04/2027
Cut Tape
Rp55.771,84
Rp41.828,88
Rp38.343,14
Rp34.490,48
Reel
Rp30.270,90
View
MouseReel Available
Min.: 1
Mult.: 1
: 1.000
1 Output Buck 500 mA VSSOP-8 42 V 6 V 10 kHz to 1 MHz 40 V LM3402 - 40 C + 125 C Reel, Cut Tape, MouseReel

Texas Instruments LED Lighting Driver ICs 42-V 0.5-A constant current buck LED dri A 926-LM3402MR/NOPB
Datasheet
1.207In Stock
2.500Expected 10/06/2027
Cut Tape
Rp47.332,68
Rp35.407,78
Rp32.288,96
Rp28.986,68
Reel
Rp24.583,64
View
MouseReel Available
Min.: 1
Mult.: 1
: 2.500
1 Output Buck 500 mA SO-PowerPad-8 42 V 6 V 10 kHz to 1 MHz 40 V LM3402 - 40 C + 125 C Reel, Cut Tape, MouseReel

Texas Instruments LED Lighting Driver ICs 0.5A Constant Crnt B uck Reg A 926-LM340 A 926-LM3402HVMRX/NOPB
Datasheet
16In Stock
Rp52.286,10
Rp39.076,98
Rp34.123,56
Rp30.821,28
View
Min.: 1
Mult.: 1
1 Output Buck 500 mA SO-PowerPad-8 75 V 6 V 10 kHz to 1 MHz 73 V LM3402HV - 40 C + 125 C Tube

Texas Instruments LED Lighting Driver ICs 75-V 0.5A constant c urrent buck LED dri A 926-LM3402HVMM/NOPB
Datasheet
Non-Stocked Lead-Time 26 Weeks
Reel
Rp24.033,26
Rp23.482,88
Min.: 3.500
Mult.: 3.500
: 3.500
1 Output 525 mA VSSOP-8 75 V 75 V 10 kHz to 1 MHz 200 mV to 40 V LM3402HV - 40 C + 125 C Reel

Texas Instruments LED Lighting Driver ICs 42-V 0.5-A constant current buck LED dri A 926-LM3402MM/NOPB
Datasheet
Non-Stocked Lead-Time 26 Weeks
Cut Tape
Rp48.983,82
Rp36.325,08
Rp33.206,26
Rp29.720,52
Reel
Rp24.400,18
View
MouseReel Available
Min.: 1
Mult.: 1
: 3.500
1 Output 525 mA VSSOP-8 42 V 42 V 10 kHz to 1 MHz 200 mV to 40 V LM3402 - 40 C + 125 C Reel, Cut Tape, MouseReel