SAM3A8C Atmel Corporation, SAM3A8C Datasheet - Page 1390
SAM3A8C
Manufacturer Part Number
SAM3A8C
Description
Manufacturer
Atmel Corporation
- Current page: 1390 of 1465
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Table 45-3.
Notes:
1390
Symbol
V
V
V
I
I
D
V
V
V
V
I
CD
CD
T
T
LOAD
LOAD-START
Q
ON
ON
VDDIN
VDDOUT
ACCURACY
LINE
LINE-TR
LOAD
LOAD-TR
DROPOUT
IN
OUT
1. A 10 μF or higher ceramic capacitor must be connected between VDDIN and the closest GND pin of the device.
2. To ensure stability, an external 4.7 μF output capacitor, CD
3. Defined as the current needed to charge external bypass/decoupling capacitor network.
SAM3X/A
This large decoupling capacitor is mandatory to reduce startup current, improving transient response and noise rejection.
GND pin of the device. The ESR (Equivalent Series Resistance) of the capacitor must be in the range 0.5 to 10 Ohms.
Solid tantalum, and multilayer ceramic capacitors are all suitable as output capacitor.
A 100 nF bypass capacitor between VDDOUT and the closest GND pin of the device decreases output noise and improves
the load transient response.
Parameter
DC Input Voltage Range
DC Output Voltage
Output Voltage Accuracy
Maximum DC Output
Current
Maximum Peak Current
during startup
Dropout Voltage
Line Regulation
Transient Line regulation
Load Regulation
Transient Load Regulation
Quiescent Current
Input Decoupling Capacitor Cf. External Capacitor Requirements
Output Decoupling
Capacitor
Turn on Time
Turn on Time
1.8V Voltage Regulator Characteristics
(3)
Conditions
Normal Mode
Standby Mode
I
V
V
See Note
V
V
I
V
tr = tf = 5 μs; I
CD
V
I
V
I
tr = tf = 5 μs
CD
Normal Mode;
@ I
@ I
Standby Mode;
Cf. External Capacitor Requirements
ESR
CD
(core power brownout detector supply rising
threshold)
CD
Load
Load
Load
Load
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
VDDIN
OUT
OUT
OUT
OUT
Load
Load
MAX
= 10% to 90% MAX
= 10% to 90% MAX
= 0.5mA to 150 mA
= 4.7 μF, V
= 4.7 μF, V
> 2.2V
= 1.8V, I
from 2.7V to 3.6V;
from 2.7V to 3.6V;
= 4.7μ F
= 4.7 μF
= 0 mA
= 150 mA
2.2V
2.2V;
2.2V;
(3)
.
Load
Load
Max
VDDOUT
VDDOUT
= 60 mA
reaches 1.8V (+/- 3%)
reaches V
OUT
must be connected between the VDDOUT and the closest
TH+
(1)
(2)
Min
1.8
0.5
-3
Typ
120
700
120
200
1.8
4.7
3.3
20
50
20
50
10
0
7
11057A–ATARM–17-Feb-12
1200
Max
150
300
240
100
100
250
400
3.6
60
50
50
10
10
3
1
Units
Ohm
mA
mA
mV
mV
mV
μA
μF
μF
μs
μs
%
V
V
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