NCP3065D1SLDGEVB: 0.35, 0.7, or 1A @ 23V Max, 8 ~ 20V in

Summary

The NCP3065 is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs. The device has a very low feedback voltage of 235 mV (nominal) which is used to regulate the average current of the LED string. In addition, the NCP3065 has a wide input voltage up to 40 V to allow it to operate from 12 Vac or 12 Vdc supplies commonly used for lighting applications as well as unregulated supplies such as Lead Acid batteries.

The device can be configured in a controller topology with the addition of an external transistor to support higher LED currents beyond the 1.5 A rated switch current of the internal transistor. The NCP3065 switching regulator can be configured in Step−Down (Buck) and Step−Up (boost) topologies with a minimum number of external components.

Specifications

Manufacturer	onsemi
Category	Lighting
Sub-Category	LED Drivers - DC In
Eval Board Part Number	NCP3065D1SLDGEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Board not Stocked
Voltage In	8 ~ 20 V
Topology	Step Up/Down
Current Out	350 mA 700 mA 1 A
Voltage Out (Max)	23 V
Outputs and Type	1 Non-Isolated
Efficiency @ Conditions	- Not Given
Features	Dimming Control Electrolytic Free Over Current Protection Over Voltage Protection
Switching Frequency	Up to 250 kHz
Component Count + Extras	26 + 6
Design Author	ONSemiconductor
Application / Target Market	Automotive Flashlight / Torch Garden Light Lighting: LED Home Lighting Lighting: LED Street Lighting Traffic Lights
Main I.C. Base Part	NCP3065
Date Created By Author	2007-10
Date Added To Library	2014-04