The ISL62391HIEVAL1Z and ISL62391LOEVAL1Z evaluation boards are used to demonstrate the performance of the ISL62391 triple-output power supply controller. The ISL62391 controller includes two pulse width modulation (PWM) controllers featured with Renesas' patented R3™ technology, output adjustable from 0.6V to 5.5V, and a linear regulator (LDO3) that generates a fixed 3.3V output and can deliver up to 100mA.

The evaluation board includes two enable switches, an LED power-good (PGOOD) indicator and various test points. Each switching channel has an on-board dynamic load generator for evaluating the transient load response.


  • High performance R3 technology
  • Fast transient response
  • ±1% output voltage accuracy
  • Two fully programmable switch-mode power supplies
  • Programmable switching frequency
  • Fixed 3.3V LDO output
  • Internal soft-start and soft-stop output discharge
  • Wide input voltage range: +5.5V to +25V
  • Full and ultrasonic pulse-skipping mode
  • Power-good indicator
  • Overvoltage, undervoltage and overcurrent protection
  • Thermal monitor and protection
  • Pb-free (RoHS compliant)


  • Notebook and sub-notebook computers
  • PDAs and mobile communication devices
  • 3-cell and 4-cell Li+ battery powered devices

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL62391, ISL62392, ISL62391C, ISL62392C Datasheet Datasheet PDF 1.12 MB
User Guides & Manuals
ISL62391xxEVAL1Z, ISL62392xxEVAL1Z User Guide Manual PDF 968 KB
ISL8200MEVAL2PHZ User Guide Manual PDF 683 KB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
ISL6271A Design Software Installer Library ZIP 1.13 MB
ISL9444EVAL3Z Design Files Design File ZIP 274 KB
ISL9444EVAL1Z Design Files Design File ZIP 274 KB
ISL9440EVAL2Z Design Files Design File ZIP 349 KB
ISL9440xEVAL1Z Design Files Design File ZIP 274 KB
ISL6440EVAL1Z Design Files Design File ZIP 257 KB
ISL6271AEVAL1 Gerber Files Design File ZIP 46 KB