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RT5091C是专为3.3V或5V供电的固态硬盘 (Solid State Drive, SSD) 准备的完整电源解决方案,它将三组高效的同步Buck转换器和一路低压差线性稳压器集成在一起,可从单一输入同时获得多个电压输出,可支持使用不同VID和需要不同启动时序的应用。RT5091C能根据需要提供可配置的输出电压为ASIC内核、DDR内存、Flash I/O和PHY等供电。藉助其I2C接口,它支持动态电压调节 (DVS)、PS3.5和PS4,将待机电源消耗最小化。
输入电压范围:2.8V至5.5V
三组可配置的高效Buck转换器,预设工作频率为2MHz►CH1,ASIC内核电源,负载能力4A,输出电压可通过REFIN或I2C接口在0.7V至1.3V间以10mV为级距进行调节►CH2,DDR电源,负载能力2A,通过FB2进行输出电压设置►CH3,Flash I/O电源,负载能力2A,通过FB3进行输出电压设置
一路低耗电线性稳压器,为模拟和PHY供电,负载能力300mA,通过FB4进行输出电压设置
通过控制外加N-MOSFET消除电源输入端的冲击电流
所有通道均有内置软起动和电流限制保护
通过STANDBY实现休眠控制
预留2个外部调节器或开关控制引脚
预留一个检测外部调节器或开关输出电压的端子
通过高速I2C接口可对CH1输出电压进行调节
通过PGOOD输出可监测VSYS、CH1-CH3和线性稳压器的输出电压状况
RST_L可指示系统复位条件
启动期间的时序控制
具备过压保护、欠压保护、欠压锁定保护和热关机保护功能
32引脚WQFN封装
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