IS31LT3170 Description
The IS31LT3170 and IS31LT3171 are adjustable linear current devices with excellent temperature stability. A single resistor is all that is required to set the operating current from 10mA to 150mA. The devices can operate from an input voltage from 2.5V to 42V with a minimal voltage headroom of 1V (typical).
IS31LT3170 Key Features
- Low-side current sink
- Current preset to 10mA
- Adjustable from 10mA to 150mA with external resistor selection
- Wide input voltage range from
- 2.5V to 42V (IS31LT3171)
- 5V to 42V (IS31LT3170) with a low dropout of typical 1V
- Up to 10kHz PWM input (IS31LT3171 only)
- Protection features
- 0.26%/K negative temperature coefficient at high temp for thermal protection
- Up to 1W power dissipation in a small SOT23-6 package