1.6A，500KHz同步升压转换器1.6A, 500KHz Synchronous Step-up Converter CXSU63183是一款电流模式的同步升压转换器，在其内部集成软启动、过流和过温等保护功能。由于在片内集成了两个同步整流管，使得此IC具有高达95%的峰值效率。在关断模式下，该转换器能实现输入、输出完全断开，负载电流为零

   产品概述 返回TOPucG嘉泰姆

        CXSU63183是一款电流模式的同步升压转换器，在其内部集成软启动、过流和过温等保护功能。由于在片内集成了两个同步整流管，使得此IC具有高达95%的峰值效率。在关断模式下，该转换器能实现输入、输出完全断开，负载电流为零。500KHz的工作频率允许使用更小的外围器件，从而节约板上空间。内部补偿和软启动功能更进一步减少外围器件并限制启动时的电流过冲。当输入电压为2.2V，输出电压为3.3V最大输出能力达400mA。CXSU63183采用TSOT23-5封装。The CXSU63183 is a highly efficient, synchronous, fixed frequency, current-mode step-up converter with output to input disconnect. When CXSU63183 is disabled, the internal conduction path from SW to OUT is fully blocked and the OUT pin is isolated from the battery. This output disconnect feature reduces the shutdown current to typically only 50nA. The 500KHz switching frequency allows for smaller external components producing a compact solution for a wide range of load currents. Highly integration and internal compensation network minimizes as 5 external components, N-Channel switch and P-Channel Synchronous switch integration will greatly improve converter efficiency. Internal soft-start function also reduce inrush current. The CXSU63183 regulates the output voltage up to 6V from either a 2-cell NiMH/NiCd or a single-cell Li-Ion battery. The CXSU63183is offered in a thin SOT23-5 package.

   产品特点 返回TOPucG嘉泰姆

   • 效率>90%ucG嘉泰姆

• 实现输入、输出完全断开ucG嘉泰姆

• 同步整流管内置</p>

• 内置软启动功能</p>

• 内部补偿ucG嘉泰姆

• 1.6A电流极限ucG嘉泰姆

• 500KHz工作频率ucG嘉泰姆

• 内置过温保护ucG嘉泰姆

• 零关断电流</p>

• TSOT23-5封装ucG嘉泰姆

• 符合RoHS规范及Pb-FreeucG嘉泰姆

z Over 90% Efficiency ucG嘉泰姆

z 1.6A Typical Switch Current Limit ucG嘉泰姆

z 500KHz Fixed Switching Frequency ucG嘉泰姆

z Output to Input Disconnect at Shutdown Mode ucG嘉泰姆

z Internal Synchronous Rectifier ucG嘉泰姆

z Internal Soft-Start ucG嘉泰姆

z Internal Compensation ucG嘉泰姆

z 50nA Shutdown Current ucG嘉泰姆

z Thermal Shutdown ucG嘉泰姆

z 5-Pin TSOT-23 Package ucG嘉泰姆

z RoHS compliant and 100% lead(Pb)-free
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   应用范围 返回TOPucG嘉泰姆

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z White LED Flash
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