ZXSC300单颗/多颗LED升压恒流驱动芯片

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

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

  ZXLD1101   LED升压驱动器，输入电压2.5 - 5.5V，输出电压28V(max)，350mA

   ZXLD1350   7V-30V输入，350mA LED驱动器，内置开关 

   ZXLB1600   LED/OLED升压偏置，输入电压1.6 - 5.5V，输出电压28V，驱动电流350mA

   ZXLD1100   LED升压驱动器，输入电压2.5 - 5.5V，输出电压28V(max)，350mA

   ZXSC300   LED升压/降压驱动器，输入电压0.8 - 8.0V，_，外置开关

   ZXSC310    LED升压/降压驱动器，输入电压0.8 - 8.0V， 外置开关        

   ZXSC380    0.8-10Vin手电筒/背光LED驱动。SOT23

   ZXSC400    LED升压驱动器，输入电压1.8 - 8.0V，外置开关       

   ZXSC440   相机闪光灯驱动器，输入电压1.8 - 8.0V， 外置开关        

   ZXLD1321  在1V至12V输入电压范围内工作，提供1A的LED电流         

   ZXLD1322  降压/升压式驱动器，可在2.5V 至15V输入电压范围内提供700mA电流

   ZXLD1575   x1/x1.5充电泵6通道驱动器，输入电压2.7至5.5V，输出电压5.5V，电流120mA 

   ZXLD1937  LED升压驱动器， 2.5 - 5.5Vin，输出电压28V(max)，驱动电流350 mA

 详细规格书请参阅：https://www.yuketek.com/product/32.html