The LM27951 is a switched capacitor white-LED driver capableof driving up to 4 LEDs with 30mA through each LED.Its 4 tightly regulated current sources ensure excellent LEDcurrent and brightness matching. LED drive current is programmedby an external sense resistor. The LM27951 operatesover an input voltage range from 2.8V to 5.5V andrequires only four low-cost ceramic capacitors.
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