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.
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| Input Voltage (Min) | 4.5V |
| Input Voltage (Max) | 38V |
| Output Current | 3A |
| Operating Temperature | -40 to +125°C |
| Dimming Method | Analog, PWM |
| Topology | Step-Down (Buck) |
| Automotive Qualification | AEC-Q100 |
| RoHS | Compliant |
