The IS32LT3953B is a buck converter-based LED driver that operates in a wide input voltage range of 4.5V to 38V. It features a built-in power switch and provides a constant output current up to 3A with high efficiency. It supports both PWM and analog dimming and is designed for high-brightness automotive lighting applications. It includes internal protections such as cycle-by-cycle current limit, thermal shutdown, and under-voltage lockout.
| RoHS |
Compliant |
| Topology |
Step-Down (Buck) |
| Dimming Method |
Analog, PWM |
| Output Current |
3A |
| Input Voltage (Max) |
38V |
| Input Voltage (Min) |
4.5V |
| Operating Temperature |
-40 to +125°C |
| Automotive Qualification |
AEC-Q100 |