第1个回答 2019-10-29
理光（Ricoh）的PMU芯片，RN5T567AJ。
PMU = Power Management Unit，电源管理单元
RN5T567AJ集成了四路降压DC-DC转换电路，七路LDO降压调压电路，电源控制逻辑电路，I²C总线接口，电压检测电路，热保护电路等等。
This IC is the power management IC for GPS-PND/STB/POS/Panel Computer and so on.
It integrates four high-efficiency step-down DCDC converters, seven low dropout regulators, power control logic, I2C-Bus Interface, voltage detections, thermal shut-down, and etc.本回答被网友采纳
PMU = Power Management Unit，电源管理单元
RN5T567AJ集成了四路降压DC-DC转换电路，七路LDO降压调压电路，电源控制逻辑电路，I²C总线接口，电压检测电路，热保护电路等等。
This IC is the power management IC for GPS-PND/STB/POS/Panel Computer and so on.
It integrates four high-efficiency step-down DCDC converters, seven low dropout regulators, power control logic, I2C-Bus Interface, voltage detections, thermal shut-down, and etc.本回答被网友采纳
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