The MT7004B is a white LED Step-Up driver for driving up to 39 white LEDs (3-series and13-parallel) from a 5V system rail. The MT7004B uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 110mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition.

The MT7004B includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.

The MT7004B is available in small 6-pin SOT23 packages.