LM3401 Datasheet (Texas Instruments) - Hysteretic PFET Controller

LM3401, Hysteretic PFET Controller

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

LM3401 Features

* 1

* 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 Compatible Enable/Dimming

* Adjustable Hyster