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NCV3065

ON Semiconductor
Part Number NCV3065
Manufacturer ON Semiconductor
Description Constant Current Buck Boosting Inverting Switching Regulator
Published Sep 13, 2007
Detailed Description DATA SHEET www.onsemi.com Constant Current Step-Up/ Step-Down/Inverting Switching Regulator for HB-LEDs 1.5 A NCP3065, ...
Datasheet PDF File NCV3065 PDF File

NCV3065
NCV3065

Overview
DATA SHEET www.
onsemi.
com 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 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.
Features • Integrated 1.
5 A Switch • Input Voltage Range from 3.
...


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