 English |
|
|
|
|
|
|
|
| SAM4L Datasheet, PDF (1134/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU | |||
| |||
| ◁ |
ATSAM4L4/L2
Table 42-35. External components requirements in Linear Mode
Symbol Parameter
Technology
CIN3
COUT1
Input regulator capacitor 3
Output regulator capacitor 1
COUT2
Output regulator capacitor 2
Table 42-36. VREG Electrical Characteristics in Switching mode
Tantalum or MLCC
0.5<ESR<10 Ω
Symbol Parameter
Conditions
Min
Typ
VVDDIN
VVDDCORE
IOUT
Input voltage range
DC output voltage (1)
Power scaling mode 0 & 2
DC output current(1)
Output DC load regulation(1)
Transient load regulation
Output DC regulation(1)
IQ
PEFF
Quescient current(1)
Power efficiency(1)
VVDDCORE = 1.65V, IOUT=50mA
IOUT = 0 mA
IOUT = 50 mA
VVDDCORE > 1.65V
IOUT = 0 to 50mA,
VVDDIN = 3 V
IOUT = 50 mA,
VVDDIN = 2V to 3.6V
VVDDIN = 2V, IOUT = 0 mA
VVDDIN > 2.2V, IOUT = 0 mA
IOUT = 5mA, 50mA
Reference power not included
2.0
1.75 1.82
1.66 1.71
-136 -101
-20
38
97
186
97
111
82.7 88.3
1.
These values are based on characterization. These values are not covered by test limits in production.
Table 42-37. Decoupling Requirements in Switching Mode
Symbol Parameter
Technology
CIN1
Input regulator capacitor 1
CIN2
Input regulator capacitor 2
CIN3
Input regulator capacitor 3
COUT1
Output regulator capacitor 1
COUT2
Output regulator capacitor 2
LEXT
External inductance
RDCLEXT
Serial resistance of LEXT
ISATLEXT Saturation current of LEXT
Note: 1. Refer to Section 5. on page 38.
X7R MLCC
X7R MLCC (ex : GRM31CR71A475)
(ex: Murata LQH3NPN220MJ0)
Typ Units
10
µF
100
nF
4.7
µF
Max
Units
3.6
1.87
V
1.79
55
mA
-82
mV
99
mV
546
µA
147
95
%
Typ Units
33
nF
100
10
µF
100
nF
4.7
µF
22
µH
0.7
Ω
300
mA
42023CâSAMâ02/2013
1134
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese