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Voltage regulator in STM32f4x

Question asked by n.serina on May 2, 2018


I am using stm32f446re nucleo board and trying out some power saving code . 

in RM i found this 

Bit 0 LPDS: Low-power deepsleep
This bit is set and cleared by software. It works together with the PDDS bit.
0:Main voltage regulator ON during Stop mode
1: Low-power voltage regulator ON during Stop mode


Does this mean , this MCU has 2 voltage regulators ? one is main voltage regulator and another one is low power voltage regulator . 

where can i get info about both the regulators ? preferably block diagrams .