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LM3401 Description

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.

LM3401 Key Features

  • 2 Hysteretic Control for Speed and Simplicity
  • Input Operating Range of 4.5V-35V
  • 1.5MHz Maximum Switching Frequency
  • Low 200mV Reference Voltage
  • Programmable Current Limit
  • High speed CMOS patible
  • Adjustable Hysteresis
  • Input UVLO
  • No output Capacitor Required
  • 8-pin VSSOP Package