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RT4823N 是带有旁通功能的 Boost 转换器,当输入电压足够高时可启用其旁通功能,输入电压不足时则可启用其升压能力以确保负载需要,其最大负载能力在以锂离子电池为输入时可达 1500mA,关机电流消耗低于 1μA,可在电池供电的应用中确保系统在电池有电时得到足够高的电压供应,通过强制其进入旁通状态可降低其工作消耗,有利于延长电池使用时间。其出货封装为 WL-CSP-9B 1.3x1.2 (BSC)。
静态电流消耗低
启动时间小于 400μs
仅需 3 只外围元件:1μH 电感、0402 规格输入电容和 0603 规格输出电容
输入电压范围:1.8V~5.5V
可工作于输入电压高于输出电压的环境
预设 Boost 模式输出电压为 5V
最大连续负载能力:1.3A@VOUT=5V, VIN>3.6V
效率可达 93%
支持 Boost、旁通和关机模式
内置同步续流开关
过流保护
逐周期电流限制
过压保护
短路保护
过热保护
WL-CSP-9B 1.3x1.2 (BSC) 封装
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