This IC is a white LED driver IC. It is a step-up DC-DC converter IC designed to drive up to 4 LEDs with constant current and suitable for backlight drivers. It requires fewer external component count using the small packages, SON-8A and WLCSP-8B, and is ideal for small battery-powered applications.


1. Enables to drive up to 4 white LEDs in a series connection
2. Input voltage range    2.7 to 5.5V
3. Shutdown current      0.1µA typ.
4. High efficiency           82% typ.
5. Luminance control      PWM system
6. Includes a Schottky diode and switching transistors
7. Incorporates a soft start circuit
8. Incorporates a current limit circuit
9. Incorporates an output open protection circuit

SON-8A

1. Cell phones
2. Digital video cameras
3. Digital still cameras
4. Portable game devices
5. PDA