| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 1.5 MHz |
| Number of Pins | 8 Pin |
| Case/Package | MSOP-8 |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 4.50V ~ 35.0V |
| Output Voltage | 35 V |
| Output Current | 1 A |
| Number of Positions | 8 Position |
| Power Dissipation | 660 W |
| Quiescent Current | 1.05 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1.5 MHz |
| Topology | Buck |
| Input Voltage (Max) | 35 V |
| Input Voltage (Min) | 4.5 V |
| Output Voltage (Max) | 33 V |
| Output Current (Max) | 1 A |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 660 mW |
| Supply Voltage | 4.5V ~ 35V |
| Supply Voltage (Max) | 35 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Width | 3 mm |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3401 is a switching controller designed to provide constant current to high power LEDs. The LM3401 drives an external P-MOSFET switch for step-down (Buck) regulators. The LM3401 delivers constant current within ±6% accuracy to a wide variety and number of series connected LEDs. Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A.
●For improved accuracy and efficiency, the LM3401 features dual-side hysteresis, very low reference voltage, and short propagation delay. A cycle by cycle current limit provides protection against over current and short circuit failures. Additional features include adjustable hysteresis and a CMOS compatible input pin for PWM dimming.
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