The ISL9444EVAL1Z and ISL9444EVAL3Z evaluation boards are used to evaluate the performance of the ISL9444 triple-output synchronous buck controller.

The ISL9444 is a triple-output synchronous buck controller that integrates three PWM controllers. The ISL9444 offers external soft-start, independent enable functions and integrates UV/OV/OC/OT protections. Its current mode control architecture and internal compensation network keep peripheral component count minimal. A programmable switching frequency ranging from 200kHz to 1200kHz helps to optimize inductor size while the strong gate drivers deliver up to 25A for each PWM channel.

Features

  • Wide input voltage range: 4.5V to 28V
  • Use lower MOSFET's rDS(ON) for current sensing
  • Extbias pin to save operating loss
  • Power failure monitor
  • Complete protection: overvoltage, overcurrent, thermal shutdown
  • Three independent power-good indicators

Applications

  • VoX gateway devices
  • NAS/SAN devices
  • ATX power supplies

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL9444 Datasheet Datasheet PDF 1.54 MB
User Guides & Manuals
ISL9444EVAL3Z User Guide Manual PDF 1.50 MB
ISL9444EVAL1Z User Guide Manual PDF 1.20 MB
Other
ISL9444EVAL3Z Design Files Design File ZIP 274 KB
ISL9444EVAL1Z Design Files Design File ZIP 274 KB