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STA1080 Datasheet(PDF) 71 Page - STMicroelectronics

Part # STA1080
Description  Accordo2 family – Automotive dual core processor for car radio and display audio application
PDF  127 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA1080 Datasheet(HTML) 71 Page - STMicroelectronics

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DS13319 Rev 2
71/127
STA108x, STA109x
Electrical Characteristics
126
4.11.5
USB 1V8 LDO (3V3 TO 1V8 Low Power Regulator)
4.11.6
USB 1V1 LDO (3V3 TO 1V1 Low Power Regulator)
Table 37. 3V3 TO 1V8 regulator
Symbol
Parameter
Limit values
Unit
Min
Typ
Max
VASupply
SR
Analog Supply(1)
3.0
3.3
3.6
V
Vout
P
Output Voltage @ Iload = max
1.71
-
1.87
V
Cload
SR
Total off chip capacitance value(2)
-4.7
-
µF
ESR of each external capacitor in frequency range
of 100 kHz - 100 MHz
10
-
150
mΩ
PSRR_DC
S
Power supply rejection at DC @ NO load
-
-
-40
dB
PSRR
S
Power supply rejection at 2 MHz @ NO load
-
-
-11
dB
Tstart
S
Start up time from power down to active after input
supply stabilizes (Supply rise time of 1µs)
--
300
µs
1. USB_VREG3V3_1V8, USB0_VDD3V3 & USB1_VDD3V3 are internally shorted in the device IO ring.
2. This is mandatory for proper device functionality.
Table 38. 3V3 TO 1V1 regulator
Symbol
Parameter
Limit values
Unit
Min
Typ
Max
VASupply
SR
Analog Supply
3.0
3.3
3.6
V
Vout
P
Output Voltage @ Iload = max
1.0
1.1
-
V
Cload
SR
Total off chip capacitance value(1)
-4.7
-
µF
PSRR_DC
S
Power supply rejection at DC @ Full load
-
-
-30
dB
PSRR
S
Power supply rejection at 1 MHz @ Full load
-
-
-28
dB
Tstart
S
Start up time from power down to active after
input supply stabilizes (Supply rise time of
1 µs)
--
300
µs
1. Mandatory for proper device functionality.



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