The ISL6719 is a low cost linear regulator for generating a low voltage bias supply from intermediate distributed voltages commonly used in telecom and datacom applications. It provides a single adjustable output rated at 100mA from either the input source or an auxiliary source such as a transformer winding. The auxiliary source is selected whenever it has sufficient voltage to sustain the output. The ISL6719 may be used as a start-up or a continuous low power regulator. When operating as a start-up regulator, it is capable of sourcing 100mA from a 100V source for short durations. This period of time allows the power supply to start-up and provide an alternate power source, such as the output of a transformer winding, to the AUXIN input. This allows the regulated output to operate from a lower source voltage to minimize power loss.


  • 100V+ input capability
  • Adjustable output from 1.5V to 20V
  • Up to 100mA output current
  • Overcurrent protection
  • Over-temperature protection
  • ENABLE and ENABLE_N inputs
  • Package compliant with IPC2221A, creepage and clearance spacing requirements


  • Telecom/datacom DC/DC converters
  • Low power bias supplies

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 1000
Active DFN Reel 6000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL6719 Datasheet Datasheet PDF 533 KB
User Guides & Manuals
HIP4086DEMO1Z User's Manual Manual PDF 2.51 MB
ISL6726EVAL1Z User Guide Manual PDF 2.20 MB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCN14041 - Data Sheet Specification Change for Intersil Product ISL6719ARZ* Product Change Notice PDF 199 KB
Motor Solution Brochure 日本語 Brochure PDF 4.54 MB