GENERAL DESCRIPTION
The IS31LT3353 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The chip operates from an input supply between 6V and 40V and provides an externally adjustable output current of up to 1A.

FEATURES
● Up to 1A output current
● High efficiency (up to 97% )
● Wide input voltage range: 6V to 40V
● Internal 40V power switch
● Simple low parts count
● Typical 3% output current accuracy
● Single pin on/off and brightness control using
   DC voltage or PWM
● Up to 1MHz switching frequency
● Inherent LED open-circuit/short-circuit
   protection
● Thermal shutdown protection circuitry
● Up to 1200: 1 dimming rate

APPLICATIONS
● LED MR16, MR11 spot light
● LED street light
● PAR light
● Industrial lighting
● Refrigeration lights
● Other LED lighting