? GENERAL DESCRIPTION

The AX2016 is a step up conver ter designed for driving up to 10 series white LEDs for backlighting application . The AX2016 uses current mode, 1MHZ fixed frequency architecture to regulate the LED current, which is set through an external current sense resistor. Its low 300mV/250mV/200mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over voltage condition is present due to an open circuit condition. The AX2016 includes under voltage lockout, current limiting and thermal shutdown protection preventing damage in the event of an output overload. The driver is available in small 6-pin SOT-23 package.

? FEATURES

- 2.5V to 5.5V operating input voltage range

- Drives up to 10 series White LEDs

- 1MHz Fixed Switching Frequency

- Wide range for PWM dimming (200Hz to 200KHz)

- Internal 1.7A switching current limit

- Over Voltage Protection (OVP)

- Internal Soft-start Function

- Current li mit and Thermal shutdown protection

- Under voltage Lockout

- Available in the 6-pin SOT-23 Package

- RoHS and Halogen free compliance