Catalog
LED Driver, Boost, Compact Backlight
Key Features
• 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
• Automatic LEDs Current Matching
• Thermal Shutdown Protection
• All Pins are Fully ESD Protected
• Low EMI Radiation
Description
AI
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.