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19-1541; Rev 0; 1/00
KIT ATION EVALU E L B A AVAIL
Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
General Description Features
o Ultra-High Efficiency o No Current-Sense Resistor (lossless ILIMIT) o Quick-PWM with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Dual-Mode Fixed 1.8V/3.3V/Adj or 2.5V/Adj Outputs o Adjustable 1V to 5.5V Output Range o 2V to 28V Battery Input Range o 200/300/420/540kHz Nominal Switching Frequency o Over/Undervoltage Protection o 1.