There is a SOT-23 case with the integrated voltage regulator. There are 3 pins on the chip. In order to meet the operating requirements of the regulator, its maximal output current reaches 500μA. Utilize the regulator IC when the temperature is below 85°C. It is recommended that the chip be operated at a temperature no lower than -40°C operating temperature. According to its specs, this IC voltage regulator generally outputs 4.5V volts. A regulator IC like this uses an analog integrated circuit called THREE TERMINAL VOLTAGE REFERENCE.
MAX6045BEUR+ Features
The maximum operating temperature of -40°C
MAX6045BEUR+ Applications
There are a lot of Maxim Integrated MAX6045BEUR+ Linear Voltage Regulators applications.