ISL6569A Datasheet | Renesas

Multi-Phase PWM Controller NOT REMENDED FOR NEW DESIGNS NO REMENDED REPLACEMENT contact our Technical Support Center at 1-888-INTERSIL or .intersil./tsc FN9092 Rev 2.00 Dec 29, 2004 The ISL6569A provides core-voltage regulation by driving two interleaved synchronous-rectified buck-converter channels in parallel. Interleaving the channel timing results in increased ripple frequency which reduces input and output ripple currents. The reduction in ripple results in lower ponent cost, reduced dissipation, and a smaller implementation area. The ISL6569A uses cost and space-saving r DS(ON) sensing for channel current balance, active voltage positioning, and over-current protection. Output voltage is monitored by an internal differential remote sense amplifier. A high-bandwidth error amplifier drives the output voltage to match the programmed 5-bit DAC reference voltage. The resulting pensation signal guides the creation of pulse width modulated (PWM)...