The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down converter,supply u

发布时间:2020-04-06 12:38:18 浏览次数:573 作者:oumao18 来源:嘉泰姆
摘要:The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down converter,supply up to 2A output load current from a 2.5V to 5.5V input voltage and the output voltage can be regulat
The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down converter,supply u

                          目录n33嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)n33嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品n33嘉泰姆

一.产品概述n33嘉泰姆


   The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down n33嘉泰姆

converter. It is ideal for portable equipment requiring very high current up to 2A from single-celln33嘉泰姆

 Lithium-ion batteries  while still achieving over 90% efficiency during peak load condi-tions. n33嘉泰姆

The CXSD6121 also can run at 100%  duty cycle for low dropout operation, extendingn33嘉泰姆

 battery life in portable systems while light load operation  provides very low output ripple n33嘉泰姆

for noise sensitive applications.n33嘉泰姆

         The CXSD6121 can supply up to 2A output load current from a 2.5V to 5.5V input voltagen33嘉泰姆

 and the  output voltage can be regulated as low as 0.6V. The high switching fre-quency minimizesn33嘉泰姆

 the size of external components while keeping switching losses low. The internal slope n33嘉泰姆

compen-sation setting allows  the device to operate with smaller inductor values to optimizen33嘉泰姆

 size and provide efficient operation.n33嘉泰姆

      The CXSD6121 is available with adjustable (0.6V to VIN) output voltage.n33嘉泰姆

二.产品特点n33嘉泰姆


· Input Voltage Range: 2.5V to 5.5Vn33嘉泰姆

· Output Voltages from 0.6V to VINn33嘉泰姆

· 2A Output Currentn33嘉泰姆

· High Efficiency: Up to 96%n33嘉泰姆

· 1.5MHz Constant Switching Frequencyn33嘉泰姆

· Low RDS(ON) Internal Switches: 0.13Ωn33嘉泰姆

· Allows Use of Ceramic Capacitorsn33嘉泰姆

· Current Mode Operation for Excellent Line and Load Transient Responsen33嘉泰姆

· Short-Circuit and Thermal Fault Protectionn33嘉泰姆

· Soft Startn33嘉泰姆

· Low Dropout Operation: 100% Duty Cyclen33嘉泰姆

· Low Shutdown Current: ISHUTDOWN < 1μAn33嘉泰姆

· SOP8 Packagen33嘉泰姆

· -40°C to +125°C Temperature Rangen33嘉泰姆

三.应用范围n33嘉泰姆


·Cellular Phonesn33嘉泰姆

·Digital Camerasn33嘉泰姆

·DSP Core Suppliesn33嘉泰姆

·PDAsn33嘉泰姆

·Portable Instrumentsn33嘉泰姆

·Smart Phones    n33嘉泰姆

四.技术规格书(产品PDF)n33嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持n33嘉泰姆

 QQ截图20160419174301.jpgn33嘉泰姆

五.产品封装图n33嘉泰姆


 1-1511050RT4131.jpg n33嘉泰姆

六.电路原理图n33嘉泰姆


blob.png   n33嘉泰姆

七.相关芯片选择指南n33嘉泰姆


系列名称 输入电压 (V)   输出电压 (V)     最大输出电流 (mA) 特点
最小 最大 最小 标准 最大  
CXSD6118 2.5V 5.5V    可调     2000 PWM同步降压转换器:效率95%以上
CXSD6121 2.5V  5.5V   可调     2000 PWM同步降压转换器:效率95%以上
CXSD6119 2.5V 5.5V    可调   1000  PWM同步降压转换器:效率95%以上
CXSD6122 2.5V 5.5V     可调    800 PWM同步降压转换器:效率95%以上
CXSD6120 2.5V  5.5V 1.75    1.86   600 PWM同步降压转换器:效率95%以上
CXSD6115 2.5V  5.5V  1.75    1.86 600  PWM同步降压转换器:效率95%以上
CXSD6116 2.5V 5.5V    可调    600  PWM同步降压转换器:效率95%以上
CXSD6117 2.5V 5.5V    可调    600  PWM同步降压转换器:效率95%以上

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