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RT5785A/B是高性能、先进的恒定导通时间(ACOT™)单芯片同步降压型DC/ DC转换器,可从2.5V~6V的输入电源提供高达2A的输出电流。专有的ACOT控制架构具有快速瞬态响应,并以小陶瓷输出电容器及没有复杂的外部补偿来提供稳定的操作。开关涟波电压能容易地平稳通过小型封装过滤组件,由1.5MHz和100%最大占空比的恒定开关频率允许设备在低压差操作使用。随着内部低导通电阻功率开关和极低的静态电流,RT5785A/B在一系列的应用程序中显示优异的效率和良好的表现。逐周期电流限制提供保护机制对抗短路输出,输入欠压锁定、输出欠压保护及过热关机保护提供所有运行条件下安全、平稳运行。RT5785A/B采用TSOT-23-8(FC)封装。
快速瞬时响应
稳定1.5MHz±200kHz开关频率
低输入静态及关机电流
先进的COT控制回路设计
陶瓷输出电容优化
2.5V~6V输出电压范围
0.6V±2%准确电压参考
集成100mΩ/60mΩ MOSFETs
内置缓开机设置
电源良好信号指示
启用控制 (Enable)
过流及过温保护
支持打嗝模式下的欠压保护
符合RoHS规范,不含卤素
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