LT8609

LT8609/LT8609A/LT8609B 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current FEATURES DESCRIPTION nn Wide Input Voltage Range: 3.0V to 42V nn Ultralow Quiescent Current Burst Mode® Operation: nn <2.5µA IQ Regulating 12VIN to 3.3VOUT nn Output Ripple <10mVP-P nn High Efficiency 2MHz Synchronous Operation: nn >93% Efficiency at 1A, 5VOUT from 12VIN nn 2A Maximum Continuous Output, 3A Peak Transient Output nn Fast Minimum Switch-On Time: 45ns nn Adjustable and Synchronizable: 200kHz to 2.2MHz nn Spread Spectrum Frequency Modulation for Low EMI nn Allows Use of Small Inductors nn Low Dropout nn Peak Current Mode Operation nn Accurate 1V Enable Pin Threshold nn Internal Compensation nn Output Soft-Start and Tracking nn Small 10-Lead MSOP Package APPLICATIONS nn GSM Transceivers nn General Purpose Step-Down nn Low EMI Step-Down L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation. All other ...