DESCRIPTION
The LT®3494/LT3494A are low noise boost converters with integrated power switch, Schottky diode and output disconnect circuitry. The parts use a novel* control technique resulting in low output voltage ripple as well as high effi ciency over a wide load current range. This technique guarantees that the switching frequency stays above the audio band for the entire load range. The parts feature a high performance NPN power switch with a 350mA and 180mA current limit for the LT3494A and LT3494 respectively.

FEATURES
■ Low Quiescent Current 65μA in Active Mode
   1μA in Shutdown Mode
■ Switching Frequency is Non-Audible Over Entire
   Load Range
■ Integrated Power NPN:
   350mA Current Limit (LT3494A)
   180mA Current Limit (LT3494)
■ Integrated Schottky Diode
■ Integrated Output Disconnect
■ Integrated Output Dimming
■ Wide Input Range: 2.3V to 16V
■ Wide Output Range: Up to 40V
■ Tiny 8-Lead 3mm × 2mm DFN Package

APPLICATIONS
■ OLED Power
■ Low Noise Power
■ MP3 Players