Description

42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5A Quiescent Current Features: Silent Switcher® 2 Architecture Ultralow EMI Emissions on Any PCB Eliminates PCB Layout Sensitivity Internal Bypass Capacitors Reduce Radiated EMI Optional Spread Spectrum Modulation Wide Input Voltage Range: 3.0V to 42V Ultralow Quiescent Current Burst Mode® Operation: <2.5µA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation: >93% Efficiency at 1A, 12VIN to 5VOUT 2A Maximum Continuous Output, 3A Peak Transient Output Fast Minimum Switch-On Time: 45ns Adjustable and Synchronizable: 200kHz to 2.2MHz Allows Use of Small Inductors Low Dropout Peak Current Mode Operation Internal Compensation Output Soft-Start and Tracking Small 16-Lead 3mm × 3mm LQFN Package AEC-Q100 Qualified for Automotive Applications