LTC1877EMS Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators


The LTC1877EMS is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 10mA and drops to < 1mA in shutdown. The 2.65V to 10V input voltage range makes the LTC1877 ideally suited for both single and dual Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. LTC1877EMS Features &bull; High Efficiency: Up to 95%&bull; Very Low Quiescent Current: Only 10mA During Operation&bull; 600mA Output Current at VIN = 5V&bull; 2.65V to 10V Input Voltage Range&bull; 550kHz Constant Frequency Operation&bull; Synchronizable from 400kHz to 700kHz&bull; Selectable Burst ModeTM Operation/ Pulse Skipping Mode&bull; No Schottky Diode Required&bull; Low Dropout Operation: 100% Duty Cycle&bull; 0.8V Reference Allows Low Output Voltages&bull; Shutdown Mode Draws < 1mA Supply Current&bull; &plusmn;2% Output Voltage Accuracy&bull; Current Mode Control for Excellent Line and Load Transient Response&bull; Overcurrent and Overtemperature Protected&bull; Available in 8-Lead MSOP Package SN74LV07APWR Applications &bull; Cellular Telephones&bull; Wireless Modems&bull; Personal Information Appliances&bull; Portable Instruments&bull; Distributed Power Systems&bull; Battery-Powered Equipment


[{"Name":"Packaging","Value":"Tube"},{"Name":"Type","Value":"Step-Down (Buck)"},{"Name":"Output Type","Value":"Adjustable"},{"Name":"Number of Outputs","Value":"1"},{"Name":"Voltage - Output","Value":"0.8 V ~ 10 V"},{"Name":"Voltage - Input","Value":"2.65 V ~ 10 V"},{"Name":"PWM Type","Value":"Current Mode, Burst Mode"},{"Name":"Frequency - Switching","Value":"550kHz"},{"Name":"Current - Output","Value":"600mA"},{"Name":"Synchronous Rectifier","Value":"Yes"},{"Name":"Operating Temperature","Value":"-40°C ~ 85°C"},{"Name":"Mounting Type","Value":"Surface Mount"}]

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