The LM3405 is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs. It features a 0.205-V reference voltage feedback control to minimize power dissipation and uses current-mode control with internal compensation. With a maximum input voltage of 15 V, it can drive up to 3 to 5 High-Brightness LEDs in series depending on forward voltage.
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| Input Voltage (Min) | 3V |
| Input Voltage (Max) | 15V |
| Output Current (Max) | 1A |
| Switching Frequency | 1.6MHz |
| Feedback Voltage | 0.205V |
| Operating Temperature | -40 to 125°C |
| RoHS | Yes |
| REACH | Yes |
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