IS31LT3380 Description
The IS31LT3380 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 voltage between 8.5V and 40V and provides an output current up to 1.2A. The IS31LT3380 includes a high-side output current sensing circuit, which uses an external resistor to set the...
IS31LT3380 Key Features
- Multi-modes switch dimming
- Up to 1.2A output current
- High efficiency (up to 98%)
- Wide input voltage range: 8.5V to 40V
- Internal 40V power switch
- Simple low parts count
- Typical 5% output current accuracy
- Up to 1MHz switching frequency
- Inherent LED open-circuit/short-circuit protection
- Thermal shutdown protection circuitry