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Constant Current Step-Up/ Step-Down/Inverting Switching Regulator for HB-LEDs
1.
5 A
NCP3065, NCV3065
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 suppor...