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NOT RECOMMENDED FOR NEW DESIGNS USE ISL6443A
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ISL6443
300kHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller
FN9044 Rev 2.00 Aug 9, 2006
The ISL6443 is a high-performance, triple-output controller optimized for converting wall adapter, battery or network intermediate bus DC input supplies into the system supply voltages required for a wide variety of applications. Each output is adjustable down to 0.8V. The two PWMs are synchronized 180° out of phase reducing the RMS input current and ripple voltage.
The ISL6443 incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET.