Datasheet

129
42023ES–SAM–07/2013
ATSAM4L8/L4/L2
Note: 1. Refer to Section 6. on page 45.
I
OUT
DC output current
(1)
V
VDDCORE
> 1.65V 55 mA
Output DC load regulation
(1)
Transient load regulation
I
OUT
= 0 to 50mA,
V
VDDIN
= 3V
-136 -101 -82 mV
Output DC regulation
(1)
I
OUT
= 50 mA,
V
VDDIN
= 2V to 3.6V
-20 38 99 mV
I
Q
Quescient current
(1)
V
VDDIN
= 2V, I
OUT
= 0 mA 97 186 546
µA
V
VDDIN
> 2.2V, I
OUT
= 0 mA 97 111 147
P
EFF
Power efficiency
(1)
I
OUT
= 5mA, 50mA
Reference power not included
82.7 88.3 95 %
1. These values are based on characterization. These values are not covered by test limits in production.
Table 9-40. Decoupling Requirements in Switching Mode
Symbol Parameter Technology Typ Units
C
IN1
Input regulator capacitor 1 33
nF
C
IN2
Input regulator capacitor 2 100
C
IN3
Input regulator capacitor 3 10 µF
C
OUT1
Output regulator capacitor 1 X7R MLCC 100 nF
C
OUT2
Output regulator capacitor 2 X7R MLCC (ex : GRM31CR71A475) 4.7 µF
L
EXT
External inductance (ex: Murata LQH3NPN220MJ0) 22 µH
R
DCLEXT
Serial resistance of L
EXT
0.7 Ω
ISAT
LEXT
Saturation current of L
EXT
300 mA
Table 9-39. VREG Electrical Characteristics in Switching mode
Symbol Parameter Conditions Min Typ Max Units