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LTC1773 - No RSENSE Low EMI / Synchronous DC/DC Controller

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Full PDF Text Transcription for LTC1773 (Reference)

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LTC1773 Synchronous Step-Down DC/DC Controller FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO High Efficiency: Up to 95% Constant Frequency 550kHz Operation VIN from...

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igh Efficiency: Up to 95% Constant Frequency 550kHz Operation VIN from 2.65V to 8.5V VOUT from 0.8V to VIN OPTI-LOOP® Compensation Minimizes COUT Synchronizable up to 750kHz Selectable Burst Mode Operation Low Quiescent Current: 80µA Low Dropout Operation: 100% Duty Cycle Secondary Winding Regulation Soft-Start Current Mode Operation for Excellent Line and Load Transient Response Low Shutdown IQ = 10µA ±1.5% Reference Accuracy Precision 2.5V Undervoltage Lockout Available in 10-Lead MSOP The LTC®1773 is a current mode synchronous buck regulator controller that drives external complementary power MOSFETs using a fixed frequ