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FEATURES
nn Ultralow Quiescent Current nn 2.5µA IQ at 12VIN to 3.3VOUT
nn Low Ripple Burst Mode® Operation nn Output Ripple < 10mVP-P
nn Wide Input Voltage Range: 4.2V to 42V Operating nn Adjustable Switching Frequency: 200kHz to 2.2MHz nn Integrated Boost and Catch Diodes nn 750mA Output Current nn Excellent Start-Up and Dropout Performance nn Fixed Output Voltages: 3.3V, 5V
nn 1.9µA IQ at 12VIN nn Accurate Programmable Undervoltage Lockout nn Low Shutdown Current: IQ = 0.75µA nn Internal Catch Diode Current Limit nn Power Good Flag nn Thermal Shutdown nn Small, Thermally Enhanced 10-Lead MSOP and
(3mm × 3mm) DFN Packages
APPLICATIONS
nn Automotive Battery Regulation nn Power for Portable Products nn Industrial Supplies nn Gate Drive Bias
LT3973/LT3973-3.
LT3973 Datasheet
