NCP5603 Datasheet - ON Semiconductor

NCP5603 High Efficiency Charge Pump Converter

Pin Symbol Type Description 1 Vout OUTPUT, PWR This pin supplies the regulated voltage to the external LED. Since high current transients are present in this pin, care must be observed to avoid voltage spikes in the system. Good high frequency layout technique must be observed. 2 C1N POWER On.

NCP5603 High Efficiency Charge Pump Converter 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. Featu.

NCP5603 Features

* ăWide Battery Supply Voltage Range: 2.7 < VCC < 5.5 V

* ăAutomatic Operating Mode 1X, 1.5X and 2X Improves Efficiency

* ăDimmable Output Current

* ăUp to 350 mA Output Pulsed Current

* ăSelectable Output Voltage

* ăHigh Efficiency Up To 90%

* ăSuppo

NCP5603_ONSemiconductor.pdf