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ISL9444EVAL1Z

Obsolete

Triple, 180° Out-of-Phase, Synchronous Step-Down PWM Controller Evaluation Board

ISL9444EVAL1Z User Guide

Overview

The ISL9444EVAL1Z evaluation board is 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.

ISL9444EVAL1Z Buck PWM Controller Eval Board
  • 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

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