PT4303 Overview
The PT4303 is a 4-channel 1x/1.5x auto-adjust charge pump white LED driver with three dimming modes. Auto-adjust charge pump achieves high efficiency for Li-Ion battery supply. The three LED dimming modes enable users to dim the four LEDs all together or individually.
PT4303 Key Features
- 3V-5.5V input voltage
- 1x/1.5x auto-adjust charge pump
- Set LED current by external resistor
- Dimming LED by PWM signal through 2 control terminal
- LED fault detection
- <3% current mismatch
- No inductor
- Less than 1uA shutdown current
- Built-in soft-start and soft mode decision
