General Description
The MAX1715 PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low-voltage CPU core, I/O, and chipset RAM supplies in notebook computers.

FEATUREs
♦ Ultra-High Efficiency
♦ No Current-Sense Resistor (lossless ILIMIT)
♦ Quick-PWM with 100ns Load-Step Response
♦ 1% VOUT Accuracy over Line and Load
♦ Dual-Mode Fixed 1.8V/3.3V/Adj or 2.5V/Adj Outputs
♦ Adjustable 1V to 5.5V Output Range
♦ 2V to 28V Battery Input Range
♦ 200/300/420/540kHz Nominal Switching Frequency
♦ Over/Undervoltage Protection
♦ 1.7ms Digital Soft-Start
♦ Drives Large Synchronous-Rectifier FETs
♦ Power-Good Indicator

APPLICATIONs
    Notebook Computers
    CPU Core Supply
    Chipset/RAM Supply as Low as 1V
    1.8V and 2.5V I/O Supply