Global Mixed-mode Technology Inc. G5603 High-Speed Step-Down Controller Features „ Ultra-High Efficiency „ No Current-Sense Resistor (Lossless ILIMIT) „ Quasi-PWM with 100ns Load-Step Response „ 1% VOUT Accuracy Over Line and Load „ 0.75V to 3.6V Adjustable Output Range „ 4.5V to 24V Battery Input Range „ Integrated Boost Diode „ OVP & UVP „ 1.7ms Soft-Start „ Driv