Hot-selling and scarce MP1518DJ-LF-Z Fixed Frequency White LED Driver SOT23

Product Descriptions

The EV0056 evaluation board is designed for backlights using white LEDs. It implements MPS’ MP1518 fixed frequency step-up converter.

The MP1518 is a 6 pin thin SOT23 step up converter designed for driving up to 6 series white LEDs from a single cell Lithium Ion battery. The MP1518 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. It’s low 100mV feedback voltage reduces power loss and improves efficiency. To prevent damage due to an open circuit condition, the OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present.

The MP1518 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP1518 is available in a small 6 lead TSOT23 package.

Product Features

On Board Power MOSFET

Drives up to 6 Series White LEDs

Up to 86 percent Efficiency

Over 1MHz Fixed Switching Frequency

Open Load Shutdown

Low 100mV Feedback Voltage

Soft Start/PWM Dimming

UVLO, Thermal Shutdown

Internal Current Limit

Product Applications

Cell Phones

Handheld Computers and PDAs

Digital Still and Video Cameras

Small LCD Displays

Product Specification

Product Photos

For more product information, please download the PDF