ZXSC300單顆/多顆LED升壓恒流驅動芯片

      The ZXSC300 is a single or multi cell LED driver digned for applications where step-up voltage  conversion from very low input voltag is required. The applications mainly operate from single 1.5V or  1.2V battery cells. The circuit generat constant current puls that are ideal for driving single or multiple LED’s over a wide range of operating voltag. The ZXSC300 is a PFM controller IC that driv an external Zetex switching transistor with a very low  saturation ristance. The transistors are the   switching devic available for this te of switching conversion enabling high efficiency conversion with input voltag below 1 volt. The drive output of the ZXSC300 controller generat a dynamic drive signal for the switching transistor. The circuit can start up under full load and operat down to an input voltage of 0.8 volts. The solution configuration ensur optimum efficiency over a wide range of load currents, several circuit configurations are possible depending on battery life versus brightns considerations. The ZXSC300 is offered in the SOT23-5 package which, when combined with a SOT23 switching transistor, generat a high efficiency all size circuit solution. The IC and discrete combination offers the ultimate cost vs performance solution for single cell LED driving applications.

      FEATUR:  94% efficiency;  Minimum operating input voltage 0.8V;  Fixed output current;  Low saturation voltage switching transistor;  SOT23-5 package 

  ZXLD1101   LED升壓驅動器，輸入電壓2.5 - 5.5V，輸出電壓28V(max)，350mA

   ZXLD1350   7V-30V輸入，350mA LED驅動器，內置開關 

   ZXLB1600   LED/OLED升壓偏置，輸入電壓1.6 - 5.5V，輸出電壓28V，驅動電流350mA

   ZXLD1100   LED升壓驅動器，輸入電壓2.5 - 5.5V，輸出電壓28V(max)，350mA

   ZXSC300   LED升壓/降壓驅動器，輸入電壓0.8 - 8.0V，_，外置開關

   ZXSC310    LED升壓/降壓驅動器，輸入電壓0.8 - 8.0V， 外置開關        

   ZXSC380    0.8-10Vin手電筒/背光LED驅動。SOT23

   ZXS00    LED升壓驅動器，輸入電壓1.8 - 8.0V，外置開關       

   ZXS40   相機閃光燈驅動器，輸入電壓1.8 - 8.0V， 外置開關        

   ZXLD1321  在1V至12V輸入電壓范圍內工作，提供1A的LED電流         

   ZXLD1322  降壓/升壓式驅動器，可在2.5V 至15V輸入電壓范圍內提供700mA電流

   ZXLD1575   x1/x1.5充電泵6通道驅動器，輸入電壓2.7至5.5V，輸出電壓5.5V，電流120mA 

   ZXLD1937  LED升壓驅動器， 2.5 - 5.5Vin，輸出電壓28V(max)，驅動電流350 mA

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