AIROC™ Bluetooth® system on chip for automotive applications
Specifications
Table 13
Core buck regulator (continued)
Conditions
Parameter
Ripple voltage
Min
Typ
Max Unit
Active mode
–
3
–
mV
2.2 H ± 25% inductor, DCR = 114 m ± 20%
4.7 F ± 10% capacitor, Total ESR < 20 m
PDS mode
40
40
2.2
4.7
–
–
–
Output inductor, L
Output capacitor,
COUT
Refer to the “Recommended component” on
page 34 section for more details.
1.6[5]
3.0[5]
μH
μF
Input capacitor, CIN
Input supply voltage 0 to 3.3 V
ramp time
4.0[5]
40
10
–
–
–
μs
Note
5. Minimum values represent minimums after derating due to tolerance, temperature, and voltage effects.
11.2.2
Recommended component
Table 14
Recommended component
Conditions
Parameter
Min
–
Typ
2.2
Max
–
Unit
μH
External inductor, L
2.2 μH ±25%, DCR = 114 mΩ ±20%, ACR < 1Ω
(for frequency < 1 MHz)
External output capacitor,
COUT
External input capacitor, CIN For SR_VDDBAT pin
1 μF ±10%, 6.3V, 0603 inch, X5R, MLCC
capacitor +board total-ESR < 20 mΩ
0.7
–
1
1.1
–
μF
10
Ceramic, X5R, 0402, ESR < 30 mΩ at 4 MHz,
+/-20%, 6.3V, 4.7 μF
External input capacitor
Only use an external input capacitor at
VDD_DIGLDO pin if it is not supplied from
CBUCK output.
–
1
2.2
11.2.3
Digital LDO
Table 15
Digital LDO
Parameter
Condition
Min
Typ Max Unit
Input supply, DIGLDO_-
VDDIN
Min must be met for correct operation
VOUT + 20 mV 1.26 1.4
V
Range
Step
Accuracy after trimming
At max load current
DC Load
0.9
–
–2
–
0.075
–
1.55[6]
–
1.2
25
–
–
40
–
1.275
–
Output voltage, DIGLDO_-
VDDOUT
mV
%
mV
mA
μA
μF
mV/V
mV/m
A
+2
20
60
40
–
Dropout voltage
Output current
Quiescent current
At T ≤ 85C, VIN = 1.4V
Output load capacitor, COUT Total trace + cap ESR must be < 80 mΩ
2.2
5
Line regulation
Load regulation
Note
1.235 V ≤ VIN ≤ 1.4 V
10
VOUT = 1.2 V, VIN = 1.26 V, 1 mA ≤ IOUT ≤ 25 mA –
–
0.44
6. Minimum values represent minimums after derating due to tolerance, temperature, and voltage effects.
Datasheet
34
002-25826 Rev. *G
2022-09-24
INFINEON [ Infineon ]
