Datasheet

DS12556 Rev 2 91/201
STM32H750VB STM32H750IB STM32H750XB Electrical characteristics
189
6.3.2 VCAP external capacitor
Stabilization for the main regulator is achieved by connecting an external capacitor C
EXT
to
the VCAP pin. C
EXT
is specified in Table 23. Two external capacitors can be connected to
VCAP pins.
Figure 11. External capacitor C
EXT
1. Legend: ESR is the equivalent series resistance.
6.3.3 Operating conditions at power-up / power-down
Subject to general operating conditions for T
A
.
Table 24. Operating conditions at power-up / power-down (regulator ON)
Table 23. VCAP operating conditions
(1)
1. When bypassing the voltage regulator, the two 2.2 µF V
CAP
capacitors are not required and should be
replaced by two 100 nF decoupling capacitors.
Symbol Parameter Conditions
CEXT Capacitance of external capacitor 2.2 µF
ESR ESR of external capacitor < 100 mΩ
MS19044V2
ESR
R
Leak
C
Symbol Parameter Min Max Unit
t
VDD
V
DD
rise time rate 0
∞
µs/V
V
DD
fall time rate 10
∞
t
VDDA
V
DDA
rise time rate 0
∞
V
DDA
fall time rate 10
∞
t
VDDUSB
V
DDUSB
rise time rate 0
∞
V
DDUSB
fall time rate 10
∞
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