Description

42V, 1.5A Synchronous Step-Down Regulator with 3A Quiescent Current Features: Silent Switcher® 2 Architecture Ultralow EMI/EMC 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: <3μA IQ Regulating 12VIN to 3.3VOUT Output Ripple <10mVP-P High Efficiency 2MHz Synchronous Operation: >90% Efficiency at 0.75A, 5VOUT from 12VIN 1.5A Continuous Output Current Fast Minimum Switch-On Time: 35ns 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 12-Lead LQFN Package