Running through the package contents, there is a temperature compensated voltage reference ... and there is even a circuit for its use as a switching regulator in the data sheet.

eBGV018-I is a low-power high-precision voltage bandgap reference circuit. The bandgap circuit accepts wide range of supply voltage from 1.8V to 3.3V and provides a stable 1.25V reference voltage. ...

1-VIA’s VSCOM4l400ABG IP is a 1.8V low-noise unbuffered programmable 0.6 and 0.8V Bandgap Voltage References (BGR) with eight 50μA reference output currents implemented in TSMC12/16nm CMOS FinFET ...

By leveraging the LVDS interface for SPI communication, this solution provides a reliable, power-efficient, and ...

Their iPad/iPhone compatible application is called “Circuit Playground”, and it includes all sorts of handy electronics reference tools ... populating the forward voltage and current fields ...