LM2755 Datasheet, Texas Instruments

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*2 90% Peak Efficiency
* Total solution size < 13mm2
* No Inductor Required: Only 4 Inexpensive Ceramic Caps
* 3 Independently Controlled Constant Curre.

* Indicator LEDs
* Keypad LED Backlight
* Display LED Backlight
* Fun-light LEDs DESCRIPTION The LM2755.

The LM2755 is a charge-pump-based, constant current LED driver capable of driving 3 LEDs with a total output current up to 90mA. The diode current waveforms of each LED can be trapezoidal with timing and level parameters (rise time, fall time, high l.