Micropower Voltage Reference

The ISL21010 is a precision, low dropout micropower bandgap voltage reference in a space-saving SOT-23 package. It operates from a single 2.2V to 5.5V supply (minimum voltage is dependent on voltage option) and provides a ±0.2 accurate reference. The ISL21010 provides up to 25mA output current sourcing with low 150mV dropout voltage.

Features

• Reference output voltages . . . . . . . . . . . 1.024V, 1.25V, 1.5V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V

• Precision 0.2 initial accuracy

• Input voltage range:

- ISL21010-10, -12, -15 -20 . . . . . . . . . . . . . . . . 2.2V to 5.5V

- ISL21010-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6V to 5.5V

- ISL21010-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1V to 5.5V

- ISL21010-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4V to 5.5V

- ISL21010-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2V to 5.5V

• Output current source capability . . . . . . . . . . . . . . . . . . 25mA

• Operating temperature range. . . . . . . . . . . .-40°C to +125°C

• Output voltage noise (VOUT = 2.048V). . . . . . . . . . . . . .58µVP-P (0.1Hz to 10Hz)

• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . .48µA (typical)

• Tempco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50ppm/°C

• Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ld SOT-23

• Pb-free (RoHS compliant)

Applications

• Battery management/monitoring

• Low power standby voltages

• Portable instrumentation

• Consumer/medical electronics

• Lower cost industrial and instrumentation

• Power regulation circuits

• Control loops and compensation networks

• LED/diode supply