National Semiconductor LM3670MF-1.8EV Board Type: Fully Populated Current - Output: 350mA Frequency - Switching: 1MHz Main Purpose: DC/DC, Step Down Outputs And Type: 1, Non-Isolated Power - Output: - Regulator Topology: Buck Series: PowerWise?® Utilized Ic / Part: LM3670 Voltage - Input: 2.5 ~ 5.5V Voltage - Output: 1.8V