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. Output voltage options include 1. 024V, 1. 2V, 1. 5V, 2. 048V, 2. 5V, 3. 0V, 3. 3V, and 4. 096V. The low supply current and low dropout voltage combined with high accuracy make the ISL21010 ideal for precision battery powered applications.


  • 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



  • 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


PDF 3.32 MB Datasheet
PDF 5.20 MB 日本語 Brochure
PDF 178 KB Product Change Notice
PDF 208 KB Price Increase Notice
PDF 430 KB Manual - Development Tools
PDF 529 KB Manual - Development Tools
PDF 1.21 MB Manual - Development Tools
PDF 1.09 MB Manual - Development Tools
PDF 721 KB Manual - Development Tools
PDF 240 KB Product Advisory
PDF 1.39 MB Application Note
PDF 503 KB Application Note
PDF 287 KB Application Note
13 items

Design & Development

Software & Tools

Software Downloads

Type Date
ZIP 759 KB PCB Design Files
ZIP 4.38 MB PCB Design Files
ZIP 569 KB PCB Design Files
ZIP 4.56 MB PCB Design Files
ZIP 475 KB PCB Design Files
5 items

Boards & Kits

Boards & Kits