The NCP5005 is high efficiency boost converter operating in current loop, based on a PFM mode, to drive White LED. The current mode regulation allows a uniform brightness of the LEDs. The chip has been optimized for small ceramic capacitors, capable to supply up to 1.0 W output power.
Features
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2.7 to 5.5 V Input Voltage Range
Vout to 24 V Output Compliance allows up to 5 LEDs drive in Series
Buil-in Overvoltage protection
Full EMI Immunity
Inductor Based Converter brings up to 90% Efficiency
Constant Output Current regulation
0.3 µA Stand By Quiescent Current
Includes Dimming Function (PWM)
Enable Function Driven Directly from Low Battery Voltage Source
