The NCP5007 is high efficiency boost converter operating in current control loop, based on a PFM mode, to drive White LEDs. The current mode regulation allows a uniform brightness of the LEDs. The chip has been optimized for small ceramic capacitors and is capable of supplying up to 1.0 W output power.
Features
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Inductor Based Converter brings High Efficiency
Constant Output Current Regulation
2.7 to 5.5 V Input Voltage Range
Vout to 22 V Output Compliance Allows up to 5 LEDs Drive in Series which Provides Automatic LED Current Matching
Built-in Over Voltage Protection
0.3 µA Standby Quiescent Current
Includes Dimming Function (PWM)
Enable Function Driven Directly from Low Battery Voltage Source