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RT5091D是输入电压为3.3V或5V的SSD(固态硬盘)完全电源管理解决方案,内含3路高效率的同步Buck转换器和1路线性稳压器,可从单一电源获得多个不同的电压输出,它具有足够的灵活性以特定的上电时序支持使用不同VID的应用。RT5091D可根据ASIC内核、DDR存储器、闪存I/O和PHY的需求配置为不同的输出电压。通过其 I2C 接口,它支持动态电压调节,可进入PS3.5/PS电源状态将待机功率消耗降至最低。
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,DRAM或NAND内核电源:Buck模式:固定或经FB2可调输出电压,负载能力2A旁通模式:负载开关及软起动控制,负载能力4A►CH3,闪存 I/O 电源,固定或经FB3可调输出电压,负载能力2A
一路低耗电线性稳压器为模拟电路和PHY供电,负载能力300mA,固定或经FB4可调输出电压,负载能力300mA
内建软启动和过流保护
经STANDBY和PS3P5实现PS3.5和PS4电源状态控制
用两个输出端控制外部调节器/开关
一个端子检测外部调节器/开关输出电压
经高速模式I2C接口对CH1输出电压进行调节
PGOOD输出
启动期间的电源时序控制
过压保护、欠压保护、欠压锁定保护、热关机保护
小型32引脚WQFN封装
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