High Efficiency, Constant Current White-LEDs Driver

The AT1312A/AT1312B/AT1312C Step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. It features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input CAN be pulsed repeatedly to adjust LEDs brightness. The fast 1.0 MHz current-mode PWM control allows for smaller capacitor and inductor. Fault condition protection uses cycle-by-cycle current limiting to sense maximum inductor current, thermal protection and over-voltage protection. Also included soft-start eliminates inrush current during start-up. The 0.2V low reference voltage minimized the power loss across the current-setting resistor. By Aimtron Technology
AT1312 's PackagesAT1312 's pdf datasheet
AT1312AX SOT-26
AT1312BX SOT-26
AT1312CX SOT-26

AT1312 Pinout, Pinouts
AT1312 pinout,Pin out
This is one package pinout of AT1312,If you need more pinouts please download AT1312's pdf datasheet.

AT1312 Application circuits
AT1312 circuits
This is one application circuit of AT1312,If you need more circuits,please download AT1312's pdf datasheet.

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