General Description
The EV0059 evaluation board is designed to drive Lumileds White LEDs using MPS’ MP1567 step down converter. The EV0059 circuit is a positive to negative voltage converter with a positive input voltage range of 2.6V to 6V. The generated output voltage can be as low as -18V with respect to ground.

Lumileds Emitter Features
■ Highest Flux per LED in the world o Up to 120 lumens
■ Very long operating life (up to100k hours)
■ Superior ESD protection
■ More Energy Efficient than Incandescent and most Halogen lamps
■ Available in White, Green, Blue, Royal Blue, Cyan, Red, Red-Orange, and Amber

MP1567 Features
■ 2A Peak Current Limit
■ Internal 180mΩ and 220mΩ Power Switches
■ > 90% efficiency
■ Zero Current Shutdown Mode
■ Under Voltage Lockout Protection
■ Soft Start Operation
■ Thermal Shutdown
■ Internal Current Limit (Source & Sink)

Applications
■ Handheld Computers, PDAs
■ Cell phones, Digital and Video Cameras
■ Small LCD Display