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

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 100
Active DFN Reel 6000


Title language Type Format File Size Date
Datasheets & Errata
star ISL6719 Datasheet Datasheet PDF 533 KB
User Guides & Manuals
HIP4086DEMO1Z User's Manual Manual - Development Tools PDF 2.51 MB
ISL6726EVAL1Z User Guide Manual - Development Tools 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, 简体中文 Brochure PDF 4.54 MB