Texas InstrumentsLM3671MFX-1.8/NOPBDC to DC Converter and Switching Regulator Chip
Conv DC-DC 2.7V to 5.5V Synchronous Step Down Single-Out 1.8V 0.6A 5-Pin SOT-23 T/R
Conv DC-DC 2.7V to 5.5V Synchronous Step Down Single-Out 1.8V 0.6A 5-Pin SOT-23 T/R