固定1.2兆赫振荡器频率电流模式升压调节器CXSU63040自动进入脉冲频率调制PFM低ESR输出电容稳定

发布时间:2020-06-01 07:54:07 浏览次数:331 作者:oumao18 来源:嘉泰姆
摘要:CXSU63040是同步整流器、固定开关频率(典型为1.2兆赫)和电流模式升压调节器。该设备允许使用USB设备的小电感和输出电容器。电流模式控制方案具有快速的瞬态响应和良好的输出电压精度。在轻负载时,CXSU63040将自动进入脉冲频率调制(PFM)操作,以减少主开关损耗。在PFM操作期间,IC消耗非常低的静态电流,并在整个负载范围内保持高效率。
固定1.2兆赫振荡器频率电流模式升压调节器CXSU63040自动进入脉冲频率调制PFM低ESR输出电容稳定

目录

   产品概述 返回TOP2eU嘉泰姆


      The CXSU63040 is a synchronous rectifier,fixed switching frequency (1.2MHz typical), and current‐mode step‐up regulator. The device allows use of small inductors and output capacitors for USB devices. The current‐mode control scheme provides fast transient response and good output voltage accuracy. At light loads, the CXSU63040 will automatically enter in Pulse Frequency Modulation (PFM) operation to reduce the dominant switching losses. During PFM operation,the IC consumes very low quiescent current and maintains high efficiency over the complete load range.The CXSU63040 also includes current‐limit and overtemperature shutdown to prevent damage in the event of an output overload. The CXSU63040 is available in ESOP 8 packages

   产品特点 返回TOP2eU嘉泰姆


 92%EffiicencySynchronousBoostConverter With 1000‐mA Output Current From 1.8V Input 2eU嘉泰姆

 Stable with Low ESR Output Capacitors 2eU嘉泰姆

 Fixed 1.2MHz Oscillator Frequency 2eU嘉泰姆

 Low EMI Converter (Integrated Anti‐Ringing Function) 2eU嘉泰姆

 Low Battery Output 2eU嘉泰姆

 Integrated Power SaveModeOperation to Improve Light Load Efficiency 2eU嘉泰姆

 On load startup 2eU嘉泰姆

 Automatic restart after protection 2eU嘉泰姆

 Load Disconnected During Shutdown 2eU嘉泰姆

 Output Current‐Limit Protection 2eU嘉泰姆

 Over Temperature Protection 2eU嘉泰姆

 Under Voltage Protection 2eU嘉泰姆

 Enable/ShutdownFunction 2eU嘉泰姆

 Available in ESOP‐8 Packages 2eU嘉泰姆

 Lead Free and Green Devices Available(RoHS Compliant)2eU嘉泰姆

   应用范围 返回TOP2eU嘉泰姆


 Power Bank 2eU嘉泰姆

 Tablet 2eU嘉泰姆

 Portable Equiment2eU嘉泰姆

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产品封装图 返回TOP2eU嘉泰姆


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