500kHz固定频率同步电流模降压型DC变换器CXSD62283 135mΩ主开关和90mΩ同步整流开关4.5V~28V的输入
发表时间:2020-05-14
浏览次数:102

目录

1.产品概述       2.产品特点     SHy嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)SHy嘉泰姆

5.产品封装       6.电路原理图  SHy嘉泰姆

7.相关产品SHy嘉泰姆

   产品概述 返回TOPSHy嘉泰姆


     CXSD62283是一款500kHz固定频率同步电流模降压型DC-DC变换器。芯片集成了135mΩ主开关和90mΩ同步整流开关,在4.5V~28V的输入范围内能够提供高达3A的负载电流。内部集成了同步整流开关,不再需要外接肖特基二极管,提高了效率。电流模控制提供了快速的瞬态响应和周期性的峰值电流限制能力。CXSD62283具有短路和过温等保护机制,以确保芯片工作的安全性。可编程的软启动有效减小了输入浪涌电流和启动时的输出过冲。芯片在关断模式下的静态电流可低至1μA以下。CXSD62283采用带有裸露底盘的SOP-8封装。The CXSD62283 is a 500KHz fixed frequency synchronous current mode buck regulator. The device integrates both 135mΩ high-side switch and 90mΩ low-side switch that provide 3A of continuous load current over a wide operating input voltage of 4.5V to 28V.The internal synchronous power switch increases efficiency and eliminates the need for an external Schottky diode. Current mode control provides fast transient response and cycle-by-cycle current limit. The CXSD62283 features short circuit and thermal protection circuits to increase system reliability. Externally programmable soft-start allows for proper power on sequencing with respect to other power supllies and avoids input inrush current during startup. In shutdown mode, the supply current drops below 1μA. The CXSD62283 is available in SOP-8 package with the exposed pad.

   产品特点 返回TOPSHy嘉泰姆


 SHy嘉泰姆

• 高达3A的输出电流SHy嘉泰姆

• 110ns最小TON时间SHy嘉泰姆

• 集成的135mΩ主开关SHy嘉泰姆

• 集成的90mΩ同步整流开关SHy嘉泰姆

• 输入电压范围:4.5V至28VSHy嘉泰姆

• 输出电压可调范围:0.8V至24VSHy嘉泰姆

效率高达95%SHy嘉泰姆

• 可编程的软启动SHy嘉泰姆

• 关断电流小于1μASHy嘉泰姆

• 500kHz固定开关频率SHy嘉泰姆

过温保护和过流保护SHy嘉泰姆

• 输入欠压保护SHy嘉泰姆

• SOP-8(EP)封装SHy嘉泰姆

• 符合RoHS规范及Pb-FreeSHy嘉泰姆

 技术规格书(产品PDF) 返回TOP SHy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SHy嘉泰姆

 QQ截图20160419174301.jpgSHy嘉泰姆

产品封装图 返回TOPSHy嘉泰姆


aSHy嘉泰姆

电路原理图 返回TOPSHy嘉泰姆

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