LTC3548-1 PDF File ( Datasheet )

FEATURES High Ef ciency: Up to 95% n 1.8V at 800mA, 1.575V at 400mA n Very Low Quiescent Current: Only 40μA n 2.25MH- Constant Frequency Operation n High Switch Current: 1.2A and 0.7A n No Schottky Diodes Required n V : 2.5V to 5.5V IN n Current Mode Operation for Excellent Line and Load Transient Response n Short-Circuit Protected n Low Dropout Operation: 100% Duty Cycle n Ultralow Shutdown Current: I < 1μA Q n Small Thermally Enhanced 3mm × 3mm DFN Packages n LTC3548-1 Dual Synchronous, F