UM3090 Description
The UM3090EESA is ±15kV ESD-protected, high-speed transceiver for RS-485 munication that contains one internal low-dropout regulator, one driver and one receiver. The internal LDO allows the device to operate from an unregulated power supply of up to 30V. The internal LDO generates a 5V±5% power supply that is used to power its internal circuitry.