z 3V-5.5V input voltage z 1x/1.5x auto-adjust charge pump z Set LED current by external resistor z Dimming LED by PWM signal through 2 control terminal z LED fault detect.

The current through the LED can be set by an external resistor. The four LEDs can be turned on and off individually or .

The PT4303 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver with two dimming modes. Auto-adjust charge pump achieves high efficiency for Li-Ion battery supply. The two LED dimming modes enable users to dim the four LEDs all together or.

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