ISL6402A

ISL6402A NOT RECOMMENDED FOR NEW DESIGNS REFER TO ISL6441 1.4MHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller DATASHEET FN9010 Rev 3.00 Dec 1, 2004 The ISL6402A 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 180o out of phase reducing the RMS input current and ripple voltage. The ISL6402A incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET. Hiccup mode overcurrent operation protects the DC-DC components from damage during output overload/short circuit conditions. Each PWM has an independent logic-level shutdown input (SD1 and SD2). A single PGOOD signal is issued when soft-start is complete on both PWM contro...