ST STM32U5 Getting Started page 7

Figure 3.
AN5373 - Rev 6
STM32U575xQ and STM32U585xQ power supply overview (with SMPS)
VDDA
VSSA
VDDUSB
VSS
VDDIO2
VSS
V
V
DDIO1
Reset block
Temperature sensor
3 x PLL
Internal RC oscillators
Standby circuitry
VSS
(Wake-up logic, IWDG)
VDD
Voltage regulator
LDO regulator
2x VDD11
VLXSMPS
SMPS regulator
VDDSMPS
VSSSMPS
Low-voltage detector
V
LSE crystal 32kHz oscillator
SW
VBAT
Backup registers
RCC_BDCR register
RTC
TAMP
BKPSRAM
V domain
DDA
2 x A/D converters
2 x comparators
2 x D/A converters
2 x operational amplifiers
Voltage reference buffer
USB transceiver
V domain
DDIO2
V
DDIO2
I/O ring
PG[15:2]
domain
DD
I/O ring
V
CORE
Core
SRAM1
SRAM2
SRAM3
SRAM4
V
CORE
Digital
peripherals
Flash memory
Backup domain
Power supplies
domain
AN5373
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