ST STM32U5 Getting Started page 9

Figure 5.
(1) Only available on specific packages.
(2) Only for STM32U5Fx/5Gx devices.
AN5373 - Rev 6
STM32U5F/5G/59/5AxxxxxQ power supply overview (with SMPS)
VDDA
VSSA
VDDUSB
(1)
VDD11USB
VSS
VDDDSI
VDD11DSI
VSS
VDDIO2
VSS
VSS
VDD
2x or 3x VDD11
VLXSMPS
VDDSMPS
VSSSMPS
Low-voltage detector
V
SW
VBAT
V domain
DDA
A/D converters
Comparators
D/A converters
Operational amplifiers
Voltage reference buffer
USB transceiver
DSI transceiver
V domain
DDIO2
V
DDIO2
I/O ring
PG[15:2]
V domain
DD
V
DDIO1
I/O ring
Reset block
Temperature sensor
V
CORE
3 x PLL
Internal RC oscillators
Standby circuitry
(Wake-up logic, IWDG)
Voltage regulator
LDO regulator
V
CORE
SMPS regulator
Flash memory
Backup domain
LSE crystal 32kHz oscillator
Backup registers
RCC_BDCR register
RTC
TAMP
BKPSRAM
AN5373
Power supplies
domain
Core
SRAM1
SRAM2
SRAM3
SRAM4
SRAM5
(2)
SRAM6
Digital
peripherals
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