Figure 1. Power Supply Scheme - ST STM32F4 Series Getting Started

AN4488
1. Optional. If a separate, external reference voltage is connected on V
1 µF) must be connected.
2. V
CAP2
3. V
REF+
4. V is either connected to V
REF-
5. N is the number of V
6. Refer to section "Voltage regulator" in datasheet
Figure 1.
is not available on all packages. In that case, a single 4.7 µF (ESR < 1Ω) is connected to V
is either connected to V
REF+
REF-
and V inputs.
DD SS
Power supply scheme
or to V (depending on package).
DDA
or to V (depending on package).
SSA
(Table 1) to connect BYPASS_REG and PDR_ON pins.
DocID026304 Rev 3
Power supplies
, the two capacitors (100 nF and
REF+
CAP1
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