10 V shunt reference in a 5-pin SC-70
It operates as a two-terminal shunt regulator, meaning it sinks current from a series resistor to maintain the reference voltage — no separate supply pin needed. The SC-70-5 package (also known as SOT-353) is a compact 5-lead surface-mount footprint, making it a fit for dense PCB layouts where board space is at a premium.
Temperature drift and output drive
This means the series resistor must be sized to supply at least 135 µA through the reference at all times, while the load current plus the reference current stays under 15 mA.
The base product number is LM4040, which spans multiple voltage options (2.5 V, 4.096 V, 5 V, 10 V) and tolerance grades (0.1%, 0.2%, 0.5%, 1%). The 'D' suffix indicates the ±1% grade, and '10' is the 10 V output.