The MWCT1000DS from NXP Semiconductors is a Wireless Charging Transmitter with Voltage 2.7 to 3.6 V, Input Voltage Range 4.2 to 19 V, Operating Temperature -40 to 85 Degrees C, Storage Temperature -55 to 150 degrees C. Tags: Surface Mount. More details for MWCT1000DS can be seen below.