General Description
The MAX8631X evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX8631X white LED 1x/1.5x/2x charge pump with two LDOs. The MAX8631X EV kit drives 4 white LEDs for backlighting and uses 4 flash LED drivers to drive a flash LED module at a high current. The two 200mA LDOs are also available for evaluation. In addition to the LED driver circuit and LDOs, the EV kit includes one pulse-generator circuit and two momentary pushbutton switches that are used for testing the single-wire, serial-pulse-dimming and flash features of the MAX8631X. The MAX8631X EV kit can also evaluate the MAX8631Y. To evaluate the MAX8631Y, order a free sample along with this EV kit.

FEATUREs
♦ MAX8631X Powers Up to 4 Main LEDs and 4 Flash LEDs
♦ EV Kit Powers 4 Main LEDs and a Flash LED Module
♦ 94% Maximum/85% Average Efficiency (PLED/PBATT) over Li+ Battery Discharge
♦ 0.2% Typical LED Current Matching
♦ Adaptive 1x/1.5x/2x Mode Switchover
♦ Single-Wire, Serial-Pulse Interface (3% to 100% Brightness)
♦ Thermal TA Derating Function
♦ Two Internal Low-Noise 200mA LDOs
♦ 2.7V to 5.5V Supply Voltage Range
♦ Soft-Start, Overvoltage, and Thermal-Shutdown Protection
♦ 4mm x 4mm 28-Pin Thin QFN IC Package
♦ Fully Assembled and Tested