GENERAL DESCRIPTION
The IS32LT3953 is a DC-to-DC switching converter with an integrated N-channel MOSFET operating in a buck configuration. The device is connected to a voltage higher than the LED voltage; between 6V and 48V and provides a constant current of up to 3.0A for driving a single LED or multiple series connected LEDs.
The LED output current is set by an external current sense resistor, allowing the output voltage to be automatically adjusted for a variety of LED configurations.

FEATURES
● Supply voltage 6V ~ 48V
● True average output current control
● 3.0A maximum output over operating temperature
   range
● Cycle-by-cycle current limit
● Integrated MOSFET switch
● Dimming via direct logic input or power supply
   voltage
● Internal control loop compensation
● Under-voltage lockout (UVLO) and thermal
   shutdown protection
● Low power shutdown (1μA typical)
● Robust protection against:
   -Adjacent pin-to-pin short
   -Pin-to-GND short
   -Component open/short faults
● Automotive AEC-Q100 Qualified (Pending)

APPLICATIONS
● Automotive and avionic lighting
● Daytime running lights
● Front and rear fog lights
● Turn/stop lights
● Map light
● Dimmable interior lights