4.5-V TO 28-V INPUT VOLTAGE, 3.3-V FIXED OUTPUT, 1.7-A OUTPUT CURRENT, NON-SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET

1FEATURES • Fixed 3.3-V Output • 4.5-V to 28-V Wide Input Voltage Range • Up to 1.7-A Maximum Continuous Output Loading Current • Pulse Skipping Mode to Achieve High Light Load Efficiency • Over 80% Efficiency at 10-mA Loading • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by