1.24 V to 6 V adjustable — the reference that sets the bias rail
The ±1% tolerance means the output voltage stays within 1% of the programmed value over temperature and load — tight enough to bias an ADC reference or a switching regulator feedback divider without a trim pot.
80 µA cathode current — the quiescent budget for always-on rails
Cathode current is 80 µA typical, which is the current the reference draws to maintain regulation. In a battery-powered design where the reference stays on continuously, that 80 µA is a fixed overhead — low enough for portable instruments and IoT edge nodes that sleep most of the time. The 15 mA output current capability covers driving the optocoupler LED in an isolated feedback loop or biasing a small load.