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STM32L552CCT3PTR Datasheet(PDF) 257 Page - STMicroelectronics

Part # STM32L552CCT3PTR
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
PDF  340 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L552CCT3PTR Datasheet(HTML) 257 Page - STMicroelectronics

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DS12737 Rev 6
257/340
STM32L552xx
Electrical characteristics
307
5.3.21
Voltage reference buffer characteristics
Table 117. VREFBUF characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Analog supply
voltage
Normal mode
VRS = 0
2.4
-
3.6
V
VRS = 1
2.8
-
3.6
Degraded mode(2)
VRS = 0
1.65
-
2.4
VRS = 1
1.65
-
2.8
VREFBUF_
OUT
Voltage
reference
output
Normal mode
Iload=100 µA/T=30°C
VRS = 0
2.044
2.048
2.052
VRS = 1
2.496
2.5
2.504
Degraded mode(2)
VRS = 0
VDDA-250 mV
-
VDDA
VRS = 1
VDDA-250 mV
-
VDDA
∆VREFOUT_
VD D
Voltage
reference
output spread
over the main
supply range
Normal mode
VRS=0
-
-
5
mV
VRS=1
-
-
4
mV
TRIM
Trim step
resolution
--
-
±0.05
±0.1
%
CL
Load capacitor
-
-
0.5
1
1.5
µF
esr
Equivalent
Serial Resistor
of Cload
--
-
-
2
Ω
Iload
Static load
current
--
-
-
4
mA
Iline_reg
Line regulation 2.8 V ≤ VDDA ≤ 3.6 V
Iload = 500 µA
-
-
2000
ppm/V
Iload = 4 mA
-
100
500
Iload_reg
Load
regulation
500 μA ≤ Iload ≤4 mA Normal mode
-
50
500
ppm/mA
TCoeff
Temperature
coefficient
-40 °C < TJ < +125 °C
-
-
Tcoeff_
vrefint +
50
ppm/ °C
0 °C < TJ < +50 °C
-
-
Tcoeff_
vrefint +
50
PSRR
Power supply
rejection
DC
40
55
-
dB
100 kHz
25
40
-
tSTART
Start-up time
CL = 0.5 µF(3)
-
300
350
µs
CL = 1.1 µF(3)
-
500
650
CL = 1.5 µF(3)
-
650
800



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