The NCP5603 is an integrated circuit dedicated to the medium power White LED
applications. The power conversion is achieved by means of a charge pump structure,using two external ceramic capacitors, making the system extremely tiny.
The device supplies a constant voltage to the load from a low battery voltage source. It is particularly suited for the High Efficiency LED used in low cost, low power applications, with high extended battery life.

• Wide battery supply voltage range : 2.7
• Automatic Operating Mode 1X, 1.5X and 2X improves Efficiency
• Dimmable Output Current
• Up to 350 mA Output Pulsed Current
• Selectable Output Voltage
• High Efficiency up to 90%
• Support 2.5 kV ESD, Human Body Model
• Support 200 V machine Model ESD
• Low 40 mA Short Circuit Current