NSI45 Constant Current Regulators

onsemi NSI45 Constant Current Regulators are two-terminal linear constant current regulators. These regulators are simple, economical, and robust devices that provide a cost-effective solution for regulating current in LEDs. The NSI45 regulators are based on Self-Biased Transistor technology and regulate output current over a wide input voltage range. These regulators are designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltages and operating temperatures. The NSI45 regulators require no external components and have a high anode-cathode voltage rating that withstands surges common in automotive, industrial, and commercial signage applications.

Results: 11
Select Image Part # Mfr. Description Datasheet Availability Pricing (TWD) 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 Qualification Packaging
onsemi LED Lighting Driver ICs LED Driver SOD 123 20mA 10% CCR 246,760In Stock
Cut Tape
NT$7.53
NT$5.23
NT$4.62
NT$3.94
Reel
NT$3.05
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 20 mA SOD-123 45 V 45 V 1 MHz Adjustable NSI45020A - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOT223 25mA 10% CCR 14,451In Stock
6,000Expected 12/1/2026
Cut Tape
NT$19.00
NT$13.41
NT$11.79
NT$10.43
Reel
NT$8.85
Min.: 1
Mult.: 1
: 1,000
1 Output Boost, Buck 25 mA SOT-223 45 V 45 V 1 MHz Adjustable NSI45025AZ - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 30MA 10% CCR 5,410In Stock
Cut Tape
NT$8.25
NT$5.70
NT$5.05
NT$4.30
Reel
NT$3.33
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 30 mA SOD-123 45 V 45 V 100 Hz to 100 kHz Adjustable NSI45030A - 55 C + 150 C AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 20mA 15% CCR 1,444In Stock
87,000On Order
Cut Tape
NT$9.32
NT$6.38
NT$5.66
NT$4.84
Reel
NT$3.73
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 20 mA SOD-123 45 V 45 V 1 MHz Adjustable NSI45020 - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 25mA 10% CCR 516In Stock
48,000On Order
Cut Tape
NT$8.25
NT$5.52
NT$4.91
NT$4.19
Reel
NT$3.05
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 25 mA SOD-123 45 V 45 V 1 MHz Adjustable NSI45025A - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 30mA 10% CCR 1,799In Stock
138,000Expected 10/15/2027
Cut Tape
NT$7.53
NT$5.23
NT$4.62
NT$3.94
Reel
NT$3.01
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 30 mA SOD-123 45 V 45 V 1 MHz Adjustable NSI45030A - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOT223 30mA 10% CCR 3,936In Stock
Cut Tape
NT$17.57
NT$13.41
NT$12.01
NT$10.43
Reel
NT$8.85
Min.: 1
Mult.: 1
: 1,000
1 Output Boost, Buck 30 mA SOT-223 45 V 45 V 1 MHz Adjustable NSI45030AZ - 55 C + 150 C Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 20MA 10% CCR 1,594In Stock
18,000On Order
Cut Tape
NT$8.60
NT$5.70
NT$5.09
NT$4.30
Reel
NT$3.33
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 20 mA SOD-123 45 V 45 V 100 Hz to 100 kHz Adjustable NSI45020A - 55 C + 150 C AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 20MA 15% CCR 3,335In Stock
Cut Tape
NT$10.76
NT$7.21
NT$6.38
NT$5.45
Reel
NT$4.12
Min.: 1
Mult.: 1
: 3,000
1 Output Boost, Buck 20 mA SOD-123-2 45 V 45 V 100 Hz to 100 kHz Adjustable NSI45020 - 55 C + 150 C AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOD 123 25MA 10% CCR 3,000In Stock
Cut Tape
NT$10.76
NT$7.42
NT$6.60
NT$5.66
Reel
NT$4.52
Min.: 1
Mult.: 1
: 3,000
SOD-123 NSI45025A AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOT223 25MA 10% CCR 357In Stock
Cut Tape
NT$18.28
NT$12.69
NT$11.33
NT$9.79
Reel
NT$8.21
Min.: 1
Mult.: 1
: 1,000
SOT-223 NSI45025AZ AEC-Q100 Reel, Cut Tape