Cross power management integrated circuit

Systems and methods for power conversion are described. The power converter may operate in a low power mode to provide a first load current from a power management integrated circuit (PMIC). The power converter may transition from a low power mode to a high power mode by activating a tri-state mode of the PMIC prior to activating at least one phase in the external power module and simultaneously operating a phase among the PMIC and the at least one phase of the external power module. The external power module and the PMIC may be on separate chips. The power converter may operate in a high power mode to provide a second load current from an external power module. The second load current may be greater than the first load current. The power converter may transition from a high power mode to a low power mode by selectively deactivating phases in the external power module prior to activation of the PMIC. 描述了用于功率转换的系统和方法。功率转换器可以在低功率模式下操作以从功率管理集成电路(PMIC)提供第一负载电流。功率转换器可以通过在激活外部功率模块中的至少一个相之前激活PMIC的三态模式以及同时操作PMIC和外部功率