ON Semiconductor
IC SENSOR UNDERVOLTAGE TO92. Supervisory Circuits 4.59V UnderVoltage Sensing Circuit
Texas Instruments
IC VOLT SUPERVISOR 2.93V SOT23-3. Supervisory Circuits 3Pin Supply Vltg Sup
STMicroelectronics
IC SUPERVISOR ULV QUAD 8-MSOP. Supervisory Circuits Quad Quint Ultra-Low Current Multi Volt