The MAX6520 is the lowest-power 1.2V, precision, three-terminal voltage reference offered in a SOT23-3 package. Ideal for 3V battery-powered equipment where power conservation is critical, the MAX6520 is a low-power alternative to existing two-terminal shunt references. Unlike two-terminal references that throw away battery current and require an external series resistor, the MAX6520 has a 70µA maximum supply current (typically only 50µA) that is independent of the input voltage. This feature translates to maximum efficiency at all battery voltages. The MAX6520 operates from a supply voltage as low as 2.4V, and initial accuracy is ±1% for the SOT23 package. Output voltage temperature coefficient is typically only 25ppm/°C, and is guaranteed to be less than 50ppm/°C in the SOT23 package.
The MAX6520 provides a precise 1.2 V reference with a typical supply current of only 50 µA, independent of input voltage, making it ideal for battery‑powered equipment. It operates from 2.4 V to 11 V and offers an initial accuracy of ±1% with a temperature coefficient of typically 25 ppm/°C.
The device is supplied in a 3‑pin SOT‑23 package and includes specifications such as a -40 °C to +85 °C operating range, 320 mW maximum power dissipation, and recommended input and output bypass capacitors for optimal transient performance.
| Supply Current (typical) | 50 µA |
|---|---|
| Input Voltage Range | 2.4 V to 11 V |
| Output Voltage | 1.2 V |
| Initial Accuracy | ±1 % |
| Operating Temperature Range | -40 °C to +85 °C |
The MAX6520 typically draws 50 µA of supply current.
It operates from 2.4 V up to 11 V.
If an output capacitor is needed, it should not exceed 10 nF.