Power Supply Scheme; Current Consumption Measurement; Figure 11. Power Supply Scheme; Figure 12. Current Consumption Measurement Scheme - STMicroelectronics STM32F050G6 Manual

Electrical characteristics
6.1.6

Power supply scheme

Figure 11. Power supply scheme

+ 1 × 4.7 μF
V DDA
10 nF
+ 1 μF
Caution: Each power supply pair (V
capacitors as shown above. These capacitors must be placed as close as possible to, or
below, the appropriate pins on the underside of the PCB to ensure the good functionality of
the device.
6.1.7

Current consumption measurement

Figure 12. Current consumption measurement scheme

36/98
V BAT
1.65 -3.6V
GP I/Os
V DD
2 ×
V DD
2 × 100 nF
2 × V SS
V DDA
V SSA
/V
DD
Doc ID 023079 Rev 3
Po wer swi tch
OUT
IN
Regulator
V REF+
ADC/
DAC
V REF-
, V /V etc.) must be decoupled with filtering ceramic
SS DDA SSA
V BAT
I DD
V DD
I DDA
V DDA
MS19213V1
Backup circuitry
(LSE,RTC,
Wake-up logic
Backup registers)
IO
Logic
Kernel logic
(CPU,
Digital
& Memories)
Analog:
RCs, PLL,
...
STM32F050xx
MS19875V1