FP6733 DCDC升压芯片.pdf

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FP6733 DCDC升压芯片

FP6733 PWM Controlled, Step-up DC/DC Converter in Tiny Package Description Features The FP6733 is a high efficiency PWM DC/DC step 0.9V (Typ.) Low Start-up Input Voltage at 1mA -up converter with internally compensated current Load mode controller. The output voltage is set with two High Switching Frequency at 550kHz external resistors. The 550kHz switching frequency Providing Flexibility for Using Internal and minimizes the size of external components. Both External Power Switches internal 1A switch and driver for driving external Automatic PFM Mode at Light Load power device (NMOS or NPN) are provided. Low Ripple and High Efficiency Excellent Line/Load Regulation The FP6733 starts up below 1V input voltage with 1mA load. Due to built-in automatic PWM/PFM Chip Enable Control Function Current Limit Protection switch-over function, the FP6733 is able to get high Thermal Overload Protection efficiency during both light and heavy load. External Space Saving Packages : SOT-23-6 and transistor pin is available to accommodate high TSOT-23-6 output current applications. The FP6733 is available in SOT-23-6 and TSOT-23-6 packages. Applications

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