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 (SEK) 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
29,36 kr
22,05 kr
18,23 kr
17,33 kr
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
23,40 kr
17,44 kr
15,98 kr
14,18 kr
Reel
12,15 kr
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
27,56 kr
20,59 kr
18,90 kr
16,99 kr
Reel
14,85 kr
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 2027-04-23
Cut Tape
29,36 kr
22,05 kr
20,25 kr
18,23 kr
Reel
15,98 kr
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 2027-06-10
Cut Tape
24,98 kr
18,68 kr
16,99 kr
15,30 kr
Reel
12,94 kr
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
27,56 kr
20,59 kr
18,00 kr
16,20 kr
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 20 Weeks
Reel
12,71 kr
12,38 kr
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 20 Weeks
Cut Tape
25,88 kr
19,13 kr
17,55 kr
15,64 kr
Reel
12,83 kr
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