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YB1313
1x/1. 5x/2x Charge Pump for White LED Application Features
Input Range : 2. 7V to 5. 5V Drives up to 5 LEDs at 25mA Each 1MHz Internal Oscillator Thermal Protection Shutdown Output Short-circuit Current Limit and
Description
The YB1313 charge pump is designed to drive up to 5 white LEDs with regulated constant current in back lit display application. The device can provide up to 25 mA per LED for a total of more than 125 mA. The input voltage ranges from 2. 7V to 5. 5V and is ideal for applications powered by a single LI-Ion or 3 to 4 NiCd, NiMH or Alkaline batteries. The 1MHz fix-frequency switching allows for tiny external components, and the regul...