4A, 2MHz Step-Down Regulator with Integrated Switches

Features
♦ Internal 31mOm RdS(ON) High-Side and 24mOm RDS(ON) Low-Side MOSFETs
♦ Continuous 4A Output Current Over Temperature
♦ ±1% Output Accuracy Over Load, Line, and Temperature
♦ Operates from 2.9V to 5.5V Vin Supply
♦ Adjustable Output from 0.6V to (0.9 x Vin)
♦ Soft-Start Reduces Inrush Supply Current
♦ 500kHz to 2MHz Adjustable Switching Frequency
♦ Compatible with Ceramic, Polymer, and Electrolytic Output Capacitors
♦ Nine Preset and Adjustable Output Voltages
0.6V, 0.7V, 0.8V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, and Adjustable
♦ Monotonic Startup for Safe-Start into Prebiased Outputs
♦ Selectable Forced PWM or Skip Mode for Light Load Efficiency
♦ Overcurrent and Overtemperature Protection
♦ Output Current Sink/Source Capable with Cycle-by-Cycle Protection
♦ Open-Drain Power-Good Output
♦ Lead-Free, 4mm x 4mm, 24-Pin Thin QFN Package