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.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Number of Outputs
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Output Current
Package/Case
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Supply Voltage - Min
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onsemi LED Lighting Driver ICs SOD 123 20MA 15% CCR
Datasheet
172In Stock
MouseReel Available
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 LED Driver SOD 123 20mA 10% CCR
Datasheet
154 915In Stock
117 000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 6 000
: 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 SOD 123 20mA 15% CCR
Datasheet
16 433In Stock
51 000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 3 000
: 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 SOT223 25mA 10% CCR
Datasheet
19 427In Stock
MouseReel Available
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
Datasheet
56 718In Stock
156 000Expected 13/10/2027
MouseReel Available
Min.: 1
Mult.: 1
Max.: 6 000
: 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 SOD 123 25mA 10% CCR
Datasheet
1 799In Stock
48 000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 3 700
: 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 SOT223 30mA 10% CCR
Datasheet
4 170In Stock
MouseReel Available
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
Datasheet
4 633In Stock
6 000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 3 000
: 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 25MA 10% CCR
Datasheet
3 000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SOD-123 NSI45025A AEC-Q100 Reel, Cut Tape, MouseReel
onsemi LED Lighting Driver ICs SOT223 25MA 10% CCR
Datasheet
357In Stock
Min.: 1
Mult.: 1
: 1 000

SOT-223 NSI45025AZ AEC-Q100 Reel, Cut Tape
onsemi LED Lighting Driver ICs SOD 123 30MA 10% CCR
Datasheet
5 406In Stock
MouseReel Available
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