输出负载可达6A同步导通时间固定高效率的降压型DC-DC转换器CXSD62255输入电压可高至30V线性瞬态响应和负载瞬态响应外部可调的软启动功能
发表时间:2020-05-11
浏览次数:71

目录

1.产品概述       2.产品特点     OWu嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)OWu嘉泰姆

5.产品封装       6.电路原理图  OWu嘉泰姆

7.相关产品OWu嘉泰姆

   产品概述 返回TOPOWu嘉泰姆


        CXSD62255是一款同步、导通时间固定、高效率的降压型DC-DC转换器。其输入电压可高至30V,在低至0.8V的输出电压下带载可达6A。CXSD62255采用固定导通时间的架构,使其在具有快速的瞬态响应的基础上还能维持相对恒定的工作频率。CXSD62255的工作频率可以通过外部电阻在100KHz~1MHz的范围内调整。CXSD62255同时集成了输入欠压保护功能、逐周期限流功能、输出过压保护功能、短路保护功能和过温保护功能。同时,外部可调的软启控制最大程度上的抑制了可能出现在启动阶段的浪涌电流和输出过冲。CXSD62255采用4mm x 4mm的TQFN-23L封装。The CXSD62255 is a synchronous, step-down constant on-time buck regulator capable of driving 6A continuous load current. The CXSD62255 can operate with an input range 2.7V to 30V and the output can be externally set down to 0.8V. The CXSD62255 provides excellent transient response with constant on-time control method while maintaining a nearly constant frequency. The switching frequency can be externally programmed from 100KHz to 1MHz. Fault condition protection includes VIN under-voltage lockout, cycle-by-cycle current limiting, output over-voltage protection, short-circuit protection, as well as thermal shutdown. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. The CXSD62255 is available in a 4mm x 4mm TQFN-23L package.

   产品特点 返回TOPOWu嘉泰姆


• 宽输入电压范围:2.7V~30VOWu嘉泰姆

• 输出负载可达6AOWu嘉泰姆

• 良好的线性瞬态响应和负载瞬态响应OWu嘉泰姆

• 内部集成Power NMOS:上管37mΩ,下管15mΩOWu嘉泰姆

• 工作频率可在100KHz~1MHz范围内调整OWu嘉泰姆

• 外部可调的软启动功能OWu嘉泰姆

• 两种工作模式:Force PWM和PFMOWu嘉泰姆

• 输出电压状态指示OWu嘉泰姆

• 输入欠压保护功能OWu嘉泰姆

• 输出过压保护功能OWu嘉泰姆

短路保护功能OWu嘉泰姆

• 逐周期的限流保护功能OWu嘉泰姆

过温保护功能OWu嘉泰姆

• 4mm x 4mm TQFN-23L封装OWu嘉泰姆

• 符合RoHS规范及Lead(Pb)-Free Halogen-Free OWu嘉泰姆

Wide input voltage range: 2.7V to 30VOWu嘉泰姆

  6A Output CurrentOWu嘉泰姆

  Excellent line and load transient responsesOWu嘉泰姆

  Integrated 37mΩ N-Channel MOSFET For High SideOWu嘉泰姆

  Integrated 15mΩ N-Channel MOSFET For Low SideOWu嘉泰姆

  Programmable PWM Frequency from 100kHz to 1000kHzOWu嘉泰姆

  Adjustable Soft-StartOWu嘉泰姆

  Selectable Forced PWM or automatic PFM/PWM modeOWu嘉泰姆

  Power Good MonitoringOWu嘉泰姆

  Under-Voltage ProtectionOWu嘉泰姆

  Over-Voltage ProtectionOWu嘉泰姆

  Cycle-by-cycle current limitOWu嘉泰姆

  Short-circuit protectionOWu嘉泰姆

  Over-Temperature ProtectionOWu嘉泰姆

  Available in TQFN-23L 4mmx4mm packageOWu嘉泰姆

  RoHS Compliant and 100% Lead(Pb)- Free, Halogen-FreeOWu嘉泰姆

   应用范围 返回TOPOWu嘉泰姆


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     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OWu嘉泰姆

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产品封装图 返回TOPOWu嘉泰姆


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电路原理图 返回TOPOWu嘉泰姆

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