LTC1622 Low Input Voltage Current Mode Step-Down DC/DC Controller FEATURES s s s s s s s s s DESCRIPTIO s s s s U APPLICATIO S s s s s s s s High Efficiency Constant Frequency 550kHz Operation VIN Range: 2V to 10V Multiampere Output Currents OPTI-LOOPTM Compensation Minimizes COUT Selectable, Burst Mode Operation Low Dropout Operation: 100% Duty Cycle Synchronizable up to 750kHz Current Mode Operation for Excellent Line and Load Transient Response Low Quiescent Current: 350µA Shutdown Mode Draws Only 15µA Supply Current ± 1.
9% Reference Accuracy Available in 8-Lead MSOP 1- or 2-Cell Li-Ion Powered Applications Cellular Telephones Wireless Modems Portable Computers Distributed 3.
3V, 2.
5...

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