LTC1772BES6

The LTC1772BES6 is designed as one kind of constant frequency current mode stepup DC/DC controller device that can be used in (1)One or Two Lithium-Ion-Powered Applications; (2)Cellular Telephones; (3)Wireless Devices; (4)Portable Computers; (5)Distributed 3.3V, 2.5V or 1.8V Power Systems. And this device provides a ±2.5% output voltage accuracy and consumes only 270 uA of quiescent current. In shutdown, the device draws a mere 8 uA.

Features of the LTC1772BES6 are:(1)Burst ModeTM Operation Disabled for Lower Output Ripple at Light Loads; (2)High Efficiency: Up to 94%; (3)High Output Currents Easily Achieved; (4)Wide VIN Range: 2.5V to 9.8V; (5)Constant Frequency 550kHz Operation; (6)Low Dropout: 100% Duty Cycle; (7)Output Voltage down to 0.8V; (8)Current Mode Operation for Excellent Line and Load Transient Response; (9)Shutdown Mode Draws Only 8mA Supply Current; (10)Tiny 6-Lead SOT-23 Package.

The absolute maximum ratings of the LTC1772BES6 can be summarized as:(1)Input Supply Voltage: -0.3V to 10V;(2)SENSE, NGATE Voltages: -0.3V to (VIN + 0.3V);(3)VFB, ITH/RUN Voltages: -0.3V to 2.4V;(4)NGATE Peak Output Current (<10 us): 1 A;(5)Storage Ambient Temperature Range: -65°C to 150°C;(6)Operating Temperature Range: -40°C to 85°C;(7)Junction Temperature: 150°C;(8)Lead Temperature (Soldering, 10 sec): 300°C. If you want to know more information about the LTC1772BES6, please download the datasheet in www.seekic.com or www.chinaicmart.com .