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height="227"/></p><p>　　XC9220/XC9221系列是<a href="http://www.mbaorg.cn/brand/111.html" target="_self" style="color: rgb(0, 112, 192); text-decoration: underline;"><span style="color: rgb(0, 112, 192);">Torex</span></a>公司生产的16V输入电压的降压型DC/DC控制器IC。以下是该系列产品的详细介绍：</p><p><strong>　　一般描述</strong></p><p>　　高效率：XC9220/XC9221系列IC能够实现高达3A输出电流的高效率稳定电源供应。</p><p>　　外部组件：只需一个晶体管、一个线圈、一个二极管和两个外部连接的电容器即可配置。</p><p>　　低ESR电容器：可以使用低等效串联电阻(ESR)的电容器，如陶瓷电容器，作为输出电容器。</p><p>　　参考电压：具有0.9V(±1.5%)的参考电压，通过外部连接的电阻器可以自由设置输出电压。</p><p>　　开关频率：内部开关频率为300kHz、500kHz和1.0MHz，可以使用较小的外部组件。</p><p>　　控制模式：XC9220系列采用PWM控制，而XC9221系列采用PWM/PFM模式，能够在轻负载时自动从PWM切换到PFM，实现高效率。</p><p>　　软启动时间：XC9220/XC9221A和C系列内部设置为4毫秒，XC9220/XC9221B和D系列可以外部设置。</p><p>　　UVLO功能：内置UVLO(欠压锁定)功能，当输入电压降至2.3V或更低时，外部P沟道驱动晶体管将被强制关闭。</p><p><strong>　　应用领域</strong></p><p>　　机顶盒</p><p>　　数字电视</p><p>　　DVD/硬盘录像机</p><p>　　智能手机/移动电话</p><p>　　笔记本电脑/平板电脑</p><p><strong>　　产品特点</strong></p><p>　　工作电压范围：2.8V至16.0V</p><p>　　输出电压外部设置范围：1.2V或更高(VFB=0.9V±1.5%)</p><p>　　输出电流：小于3.0A</p><p>　　振荡频率：300kHz、500kHz和1.0MHz</p><p>　　控制方法：PWM控制(XC9220)，PWM/PFM自动切换(XC9221)</p><p>　　软启动功能：4ms，内部设置(XC9220/XC9221A，500kHz)，外部设置(XC9220/XC9221B)</p><p>　　?；さ缏罚杭杀；?1.0ms)(XC9220/XC9221 A和B系列)，短路?；?/p><p>　　低ESR：兼容陶瓷电容器</p><p>　　工作环境温度：-40℃至+85℃</p><p>　　封装：符合欧盟RoHS标准，无铅</p><p>　　XC9220/XC9221系列DC/DC控制器IC以其高效率、灵活性和可靠性，适用于多种便携式和固定式电子设备，特别是在需要高效率和高电流输出的应用中表现出色。</p><p style="text-indent: 2em;"><a href="http://www.mbaorg.cn/brand/100.html" target="_self" style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; background-color: rgb(255, 255, 255); color: rgb(0, 112, 192); text-decoration-line: none; cursor: pointer; font-family: 微软雅黑, "Microsoft YaHei", sans-serif, arial, Arial; text-indent: 32px; text-wrap: wrap; font-size: 14px;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none;">Torex</span></a><span style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; color: rgb(102, 102, 102); font-family: 微软雅黑, "Microsoft YaHei", sans-serif, arial, Arial; text-indent: 32px; text-wrap: wrap; background-color: rgb(255, 255, 255); font-size: 14px;">特瑞仕XCL系列PoL非隔离电源?？?strong style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; color: rgb(51, 51, 51); text-indent: 30px; font-size: 15px;"><strong style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none;"><strong style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none;"><span style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; font-size: 14px;">可用</span></strong><span style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; font-size: 14px; text-decoration-line: underline;"><strong style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none;"><a href="http://www.mbaorg.cn/article/3154.html" target="_self" style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; background-color: transparent; color: rgb(0, 112, 192); text-decoration-line: none; cursor: pointer; text-align: center;">Cyntec电源?？?/a></strong></span></strong></strong><strong style="box-sizing: border-box; margin: 0px; padding: 0px; list-style: none; color: 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